Ford A/C System Diagnosis and Repair Playlist: ua-cam.com/play/PLnkaHoqfNwiFK5G54sHV-cnq96_R2oQWK.html Forscan is a free Ford Specific Diagnostic Software: Download Here- forscan.org/home.html ELM 327 Adapter I Recommend- amzn.to/2GC6dBj As an Amazon Associate I earn from qualifying purchases.
Wow... I watched multiple videos of which never mentioned the low/high fan fuse. Almost bought a $200 blower fan minutes before watching this. Swapped relays and good to go. Taking wife to dinner thanks.
A master mechanic who can explain repairs in a way nearly anyone can understand. If he were local to me I'd quit doing my own work and trust my truck to him!
You are the absolute best. I had a "nightmare" truck with almost every issue possible and you've covered every single one. Saved me countless thousands in repairs, down time and headaches. People like you are what make UA-cam and really the connected internet era so powerful.
Ladies and gents. This is a Certified Ford Motor Company/Automotive Service Excellence Master Automotive Technician!! Not a mechanic!! This man knows every part of a automotive. I'm certified by Gm/ASE myself for 20 yrs since i was 21years old. We spend countless hours in a classroom and in front of a computer staying up to date with the automotive service industry. As well as a lot of our own money to stay ASE master certified. We are paid well yes BUT when you figure in what we pay for tools(in 20yrs over $400,000). Dealing with the public, people calling trying to get free info or diagnosis over the phone. Ppl stopping by your house and job we make about 3 bucks an hour. I never get to go anywhere,not wvwn my kids school wothout getting a car question!! True story.
if it has been to a Ford dealership lately... good chance it's unplugged or the wires ripped out! Just lile the alternator on my recent $12,500 engine replacement job.... first class work! They even asked if I wanted to pay extra for them to troubleshoot the alternator issue!! First class punks!
Hopefully everyone appreciates you sharing your time and effort to create these presentations, as simple as the subject may ( or not ) be, I really look forward to watching your diagnostic conclusions, even though I'm not a Ford guy, I still appreciate your skills and effort, I still can't believe in this day and age that technicians are still cramming oversized test leads or objects into harness connections? Remember, if the pin don't fit, you must Quit! Sorry, goofy but true
I actually bought an complete A/c compressor Kit from a guy that sells everything compressor related parts and completely tore down the compressor and rebuilt with new seals and bearings. It was surprisingly easy to do. 9 years past and still running strong and cold.
Thanks for making videos! Fixed my 04 f150 stx from your videos! Fix my broken OD snap ring and valve body problems. 👍👍👍👍👍 update! Sold 04 and now got a 2014 f150 XLT 5.0L hopefully a better truck! 04 Frame rusted in half !
I really like the method. On non Fords we can use a scan tool to activate the compressor. I like your trusty window motor. I remember that one from the old old days. Back when u used to use your little Bosch for almost everything. I have a little old SnapOn someone gave me for the quick light stuff. The trigger is forward and reverse. It’s small and really light. Everything else is the Milwaukee ratchets. I use four of them. The extended one is super powerful and it gets everywhere.
I love your videos. It's so refreshing to watch an HONEST mechanic who knows what he's doing. It's obvious whomever replaced the compressor clutch not only didn't see any of your vids, they didn't use real Motorcraft parts. Thank you for helping me keep my 2011 F-150 on the road. I love the shot of your dogs!
Great diag video! I would only add that I have found at least as many compressor side pigtails to be faulty. Apparently the aftermarket compressor pin retainers in their pigtails are defective and the pin pushes right out when connected with the vehicle harness. Keep it up sir!
Aaahhh dogs aren’t envious of you having an awesome job and a great UA-cam presence. So why you envious of them just plain old chill’n?? Lol, thanks for walking through an ac trouble shoot and fix. Your always so explicit and thorough!
You did a great job as usual. However other shops integrity will be the issue thats needs repair lol. They gonna say something expensive needs to be done like full freon flush n recharge but just for what u did..so hard to find trustworthy shops today..
Run into this all the time on U-Haul trucks, usually have to give the male terminal end a slight twist if I don't have the right connector in stock, works almost every time. This is also why I keep a good selection of sewing needles for diagnostic purposes. Great job & great video🍻 That compressor isn't long for this world, sounded like 💩
Back in the old days eec 3 eec 4 we had the wiggle test probably would have found it that way too been retired for 10 years now but good and informative video !
@@Jeff_Pendleton replace the AC clutch or the compressor with clutch assembly. Clutch is easier for DIY because you don't need to worry about refrigerant.
Typically, but not always, if the rubber donut goes the compressor is on its way out & is creating so much drag that it eventually shears the rubber in two. If your compressor was loud/rattly before it happened, do yourself a favor & change it.
@16:27 your high side gage was shut off. i like to keep an eye on both low and high pressures. a low high side could be an undercharge that will show up on a really hot day. but yeah great video on how the simple things can fuel the parts self propelled howitzer.
The valve is only used for charging. In other words that valve only blocks flow to the machine not to the gauge which is why it was reading in the first clip even though it was closed.
It was in the beginning, I can tell based on the output temp and low side pressure how healthy the compressor is so I rarely have to hook it up. I pretty much only use the high side line when diagnosing scroll compressors.
awwwww luv me some boxers !!! great vid..about to have my 08 F150 AC revamped ....I tried to replace the compressor but made a mess of it...now its time to pay the piper...Im really dreading all my expensive stereo gear being jacked so its all going to come out..I did find someone local with 5 star review and pricing / hourly seems to be straightforward...
I'm having this same problem with my 2017 sierra. It would be great if it was a simple electrical issue but knowing my luck it isn't. Thanks for the video man 🤘🤙
My 2011 f150s no AC issue was my blend door not working. I pulled the head unit out & pulled the blend door motor out & turned the little thing open by hand & boom, AC works now.
Thought the plug was my issue also. Running KOEO self test clutch line shows .02V when actuated (Backprobed), test probe confirms good ground. 12V direct to clutch activates and confirms good clutch. With vehicle running if i apply direct voltage to clutch it activates and pressures pull down perfectly. Live data stream on scanner says ECM thinks compressor is activated, both pressure switches good, dash switch registers......WTF am I missing?? Power lead wire to clutch has to be bad but can find a split stripped back to big wire bundle. Fuse is good and swapped relay with horn to be sure.....Anyone have any ideas?
During KOEO test check power and ground harness side with the connector disconnected. If it shows battery voltage but drops to your reading of .02v when back probed and loaded up by the clutch then you have an issue with either the clutch relay or the power side lead. Load test the positive wire and swap in a known good relay from the power box to see which.
@@FordTechMakuloco Reran the KOEO test with clutch wire removed, negative on wire grounded to battery and meter probing the hot side of the plug. This time when test activated meter read .04V. Returns to zero on test completion. Swapped Relays for horn and compressor testing function of both and achieved same results. Followed the clutch wires up to the disconnect plug on side of battery housing, unplugged and ran leads from + and - on battery to female pinset in disconnect for clutch wires. Clutch activates. Going to flip fuse box in the morning and test wires all the way to relay. Has to be a split under im thinking. Will pickup a few new relays also.
@@FordTechMakuloco Using multimeter to test relay socket, am I correct in thinking the leg #30 should show 12v with a battery ground and system on and good ac clutch fuse? If so I should be able to install a new fused power feed direct to that relay leg to solve my issue. Thanks for the troubleshooting.
Another Great Video... yep to large probes spreads connectors. sad the bad tech is so foolish and it came back on him... so glad you found the real problem...
Unfortunately most mechanics these days only rely and the computer to tell them what's wrong they don't use their brain like you do. thanks for the video get some A/C in that shop!
This is literally the dumbest comment on here. The “computer” doesn’t ever tell you exactly what’s wrong… This is the now common thought process of customers because of the free code reads lube shops and auto zones do. Gtfo.
most electrical problems occur at connections and are resistant by nature... at class we had to say that everyday... the teacher said it will help you as a electrical tech...
Thats an awesome tutorial on how to fix something that was not really broken just someone was not quite up to speed on checking with the test light lol ...could u tell me were my hvac module get its power from its on a 05 f350 king ranch thks ..luv the content keep up the good work..
Any idea why my 09 would have poor air flow? I've changed all actuators, fan resistor, and fan and still don't get great flow on high. It sounds like it's blowing full but feels more like half, on heat or AC.
My fiancé has a 2017 F150 and while we were coming back from vacation, the AC quit. I had her pull over at a rest stop and discovered that the rubber part of the clutch had basically disintegrated leaving rubber flung all over everything. Truck had less than 33,000 miles on it and of coarse was out of warranty due to it being four years old. This truck has the newer 1234yf refrigerant and none of the local shops were equipped to service vehicles with this new stuff so we had to take it to the dealer to get repaired. Just replacing the clutch was going to cost almost as much as just replacing the whole compressor so she had the compressor replaced. $1,100 later she has working AC again. We tried to get them to fix it under a good will warranty but no dice. Needless to say my fiancé who is a life long Ford owner was not impressed. Her last truck was a 1 ton 2003 Ford Super Duty that she bought new and it still had all of the original AC equipment and had never been recharged in the 14 years she owned it and it still blew cold air. Great Video.
I don't have anything nice to say about people who "try" to diagnose but then create more problems from bad practices like jamming a test light into something.
Awesome video! Thank you for taking the time to make it and all the others that I have yet to watch, but will. I bought a 2013 F150 5.0 a few months ago and the AC was working until today. Your video(s) will put me on the correct way to troubleshoot the system. Thanks for the FORScan link!
Thanks for the videos. Question: 2010 F150 FX4 5.4L V8 w/ automatic climate control. A/C stopped working a couple of years ago. Finally got it diagnosed and needed a new compressor. New compressor has been installed, system charged to 58, new A/C pressure transducer, relays are good, fuses are good, put in a new blower motor resistor today, climate control cluster is functioning properly, had a second mechanic check PCM and control would send signal to turn on clutch, but it went from ON to immediately OFF. I brought it home and ran the Key On Engine Off test and clutch engaged just fine. Used Forscan to run the HVAC test and no faults. No HVAC DTC faults either. Wondering if you have any suggestions on my issue (other than "give and up and sweat out the Texas Summer, buddy"). I did pull get the ProDemand schematic for my VIN number and page 2 of 3 shows the Instrument Cluster on MS CAN 10 and 9 on Computer Data Lines running to the PCM HS CAN - 43 and HS CAN + 59 (If you read this entire thing, thank you already for your time)
Hi there I have a Ford-150 everything is running very well. It’s only when I come to a complete. The oil gauge goes very low to nothing and AC will stop, but you could hear that something turns back on when you’re about to step on the seller raider
Hi, may I ask what are the other things to check out for the AC system in my Ford Expedition 2003 model. What happened is it suddenly stop releasing cold air. We already checked the fuse (all ok the filament are still intact), AC Compressor clutch still working we bypass it and the AC pressure switch we conduct testing on it but what happen in the fuse box there's no power supply in the fuse for AC and also the AC compressor as well. Loved your videos. Hope you notice me.
I have a '17 Transit 150 with the 3.7 and it has "warm" A/C issues. L/S, H/S pressures are good and compressor is coming on, but I've had a few of the micro cartridge fuses for the electric fans blow, so I replaced them with ones from O'Riely's, but their fuses look like they're almost blown. Is it best to get the Motorcraft fuses for this? Are the Bussman ones garbage?
Can the coil on the compressor of a 2007 Expedition blown the 10 amp fuse when it goes bad? Clutch doesn't engage. But blows the fuse whenever I hit the A/C button.
My 2009 f150 AC compressor seems to kick on and off every couple seconds but it will blow cold at certain times, I’m down to replacing the thermostatic expansion valve, part of me feels like here could be a restriction, I charged it today and hooked up my gauges and the compressor would kick on but then kick back off and did that a few times! Would you say I’m on the right track?
2010 f150xlt supercrew 5.4. I have had it worked on several times in the last few years. It barely blows and never gets more coolish air. We also have an 03 f150xl that will freeze you as well as a 2020 xl supercrew that freezes you. Mine never gets cold. No one can figure it out. Edit: My 15 yr old cycled through the fan settings and turned it off and on and it worked a little better 2 days ago. I got in my 2010 today and the AC is colder than it has ever been. I drove 20 minutes then shut it off for about 15 min. When I walked out it was hissing. The lines blew out and lost all freon. The shop says the gauges don't read correctly on my truck. The manual gauges and AC machine showed equal after replacement on 100degree outside temp. The system in my truck has been completely replaced except the lines. I'm at a loss and can't afford to keep putting money into the system. The truck is great other than the AC. @fordtechmakuloco
Had a 2010 stop in today same issue gonna more indepth when he stops back later this week the I check this video out I couldn't find the the dryer on the truck.
With those pins in the plug spread out, it makes me wonder if the original clutch was even bad. That doesn’t matter, the owner or previous mechanic ( I use the term mechanic loosely) has a parts cannon!
Do you have a video about why fans on a 13 f150 would run on high with ac or defrost on. I’ve got ice cold ac ac pressure sits around 30 and coolant is full. The temp on the dash is normal and no lights or codes
On my 2011 f150 XLT Ecoboost , the AC clutch comes on and stays on , but does not blow cold air. I am thinking low coolant but not sure. Also, the fan used to stay on the whole time the AC was on but now the fans shuts off but no cold air. I can feel cold air very briefly upon startup.
After the blower motor wearing out caused the blower switch , resistor and pigtails failed on my friends 2010 E250, 5.4. I pointed out he could install a heavy duty switch to the ground side of the fan to bypass the fan switch and resistor and now on the hottest days in so cal inland empire the A/C blows even harder do to reduced voltage drop and it still goes off with the key do to the blower relay.
Hi , mine just went out its a 2011 f150 eco it blows sooo cold with 234k miles until just about an hr ago . I started it up an it made a sqilling noise an went blowing hot. I turn it off an then back on an it did it alittle again so I turned the ac back off an got home tried it again but no noise this time an blowing hot.... wonder what went out? Thankbyou.
PinOut: Do you know what the connector voltage settings are for a 2012 Ford Escape low pressure switch and do you know what the Ohm values are for a 3 pin HVAC low pressure switch are?
Hey just out of a curiousity have you every had a no power to AC clutch, clutch can be powered up separately, no issues with pressure, low pressure cycle switch replaced, ambient temp replaced, AC clutch relay and all fuses replaced just in case. The relay clicks when the AC request is made, but no power is getting to the AC clutch. Ford dealership wants to replace the compressor, which I ask: ok if the compressor is bad, please tell me how you know, and if we replace it please tell me how you know it will get power? Just curious as I can't seem to find a high pressure sensor listed in any diagram, and I am curious as to how the EVDC sensor factors in? Thanks, your videos about diagnosing components helped out and showed no power was getting to the clutch. Tech didn't even test the AC clutch, just immediately went to replace the compressor, despite being told that another shop tested everything and couldn't figure out the now power to the clutch issue.
Hey FordTechMakuloco I have a cord expedition king ranch 2006 I have a mechanic working on the ac he fixed the leaking and added a new fuse box he says the ax works when it’s direct but the compressor doesn’t want to click on when it’s not directly connected any ideas?
I have a 2012 svt raptor and the clutch keeps engaging and disengaging. I drained the coolant, pulled a vacuum and reserviced it with 21oz refrigerant per the vehicle spec. Pressures are around 35 low and 150 high…the compressor still keeps cycling after about 30 seconds…runs,stops,runs,stops…..any ideas? Any help greatly appreciated!
Having a problem with my 150 not sending signal to the clutch to engage. Can't figure it out. Everything seems to be ok. Hope this helps point me in the right direction
Ford A/C System Diagnosis and Repair Playlist:
ua-cam.com/play/PLnkaHoqfNwiFK5G54sHV-cnq96_R2oQWK.html
Forscan is a free Ford Specific Diagnostic Software:
Download Here-
forscan.org/home.html
ELM 327 Adapter I Recommend-
amzn.to/2GC6dBj
As an Amazon Associate I earn from qualifying purchases.
It was the crip!?
Wow...
I watched multiple videos of which never mentioned the low/high fan fuse. Almost bought a $200 blower fan minutes before watching this. Swapped relays and good to go.
Taking wife to dinner thanks.
So glad you show even the simplest repair. Sometimes it is just a connection issue. Thank you for the video.
This is the perfect example of a master mechanic! 😎👍👍👋🤙
A master mechanic who can explain repairs in a way nearly anyone can understand. If he were local to me I'd quit doing my own work and trust my truck to him!
You are the absolute best. I had a "nightmare" truck with almost every issue possible and you've covered every single one. Saved me countless thousands in repairs, down time and headaches. People like you are what make UA-cam and really the connected internet era so powerful.
You and Eric O are 2 of the best in your field
Ladies and gents. This is a Certified Ford Motor Company/Automotive Service Excellence Master Automotive Technician!! Not a mechanic!! This man knows every part of a automotive. I'm certified by Gm/ASE myself for 20 yrs since i was 21years old. We spend countless hours in a classroom and in front of a computer staying up to date with the automotive service industry. As well as a lot of our own money to stay ASE master certified. We are paid well yes BUT when you figure in what we pay for tools(in 20yrs over $400,000). Dealing with the public, people calling trying to get free info or diagnosis over the phone. Ppl stopping by your house and job we make about 3 bucks an hour. I never get to go anywhere,not wvwn my kids school wothout getting a car question!! True story.
Drove two months in Arizona during summer thinking my compressor went out. This was the fix thankfully. You're the man!
Your awesome I wish there where more techs like yourself. Keep up the videos thank you
if it has been to a Ford dealership lately... good chance it's unplugged or the wires ripped out! Just lile the alternator on my recent $12,500 engine replacement job.... first class work! They even asked if I wanted to pay extra for them to troubleshoot the alternator issue!! First class punks!
Ford dealerships have become the worst places ever.
I'll never have them service my trucks anymore. Didn't even tighten down my oil filter barely finger tight
Hopefully everyone appreciates you sharing your time and effort to create these presentations, as simple as the subject may ( or not ) be, I really look forward to watching your diagnostic conclusions, even though I'm not a Ford guy, I still appreciate your skills and effort, I still can't believe in this day and age that technicians are still cramming oversized test leads or objects into harness connections? Remember, if the pin don't fit, you must Quit! Sorry, goofy but true
I actually bought an complete A/c compressor Kit from a guy that sells everything compressor related parts and completely tore down the compressor and rebuilt with new seals and bearings. It was surprisingly easy to do. 9 years past and still running strong and cold.
And this is the difference between a real mechanic and someone like me that tries to fix issues themselves.
I agree 100 percent
Agree but still I encourage to fix my own stuff up to certain level
Not everyone can afford 3000 for labor
Lol right.. change something yourself suddenly it all is messed up lol every time..
Thanks for making videos! Fixed my 04 f150 stx from your videos! Fix my broken OD snap ring and valve body problems. 👍👍👍👍👍 update! Sold 04 and now got a 2014 f150 XLT 5.0L hopefully a better truck! 04 Frame rusted in half !
I really like the method. On non Fords we can use a scan tool to activate the compressor. I like your trusty window motor. I remember that one from the old old days. Back when u used to use your little Bosch for almost everything. I have a little old SnapOn someone gave me for the quick light stuff. The trigger is forward and reverse. It’s small and really light. Everything else is the Milwaukee ratchets. I use four of them. The extended one is super powerful and it gets everywhere.
Great diagnostic work, Brian. Too bad that more techs aren't as sharp as you. Keep up the great work.
I love your videos. It's so refreshing to watch an HONEST mechanic who knows what he's doing. It's obvious whomever replaced the compressor clutch not only didn't see any of your vids, they didn't use real Motorcraft parts. Thank you for helping me keep my 2011 F-150 on the road. I love the shot of your dogs!
Another reason why we should all bring our fords to someone that knows what they’re doing like you, great info as usual. Thanks!
Great diag video! I would only add that I have found at least as many compressor side pigtails to be faulty. Apparently the aftermarket compressor pin retainers in their pigtails are defective and the pin pushes right out when connected with the vehicle harness. Keep it up sir!
I can now definitely understand why Ford's parts site has so many different pigtails.
Great explanations. Can't beat experience.
As a former fleet mechanic, those connector pin "adapters" definitely earn their place in the toolbox.
Excellent Diagnosis and Repair, ty Sir your ability is way above and beyond the rest.
Aaahhh dogs aren’t envious of you having an awesome job and a great UA-cam presence. So why you envious of them just plain old chill’n??
Lol, thanks for walking through an ac trouble shoot and fix. Your always so explicit and thorough!
You did a great job as usual. However other shops integrity will be the issue thats needs repair lol. They gonna say something expensive needs to be done like full freon flush n recharge but just for what u did..so hard to find trustworthy shops today..
Man excellent video, troubleshooting skills coupled with system knowledge on display yet again on the FTM channel. Thanks!!
a little warm... It literally was 112 Degrees over here lol. Great video like usual.
These videos are spot-on for me right now, as I'm having a/c issues on my 2011 CVPI. Appreciate it.
All man.....I've done so many a/c jobs in the last month🥶Summer is definitely here😉
Run into this all the time on U-Haul trucks, usually have to give the male terminal end a slight twist if I don't have the right connector in stock, works almost every time. This is also why I keep a good selection of sewing needles for diagnostic purposes. Great job & great video🍻
That compressor isn't long for this world, sounded like 💩
Back in the old days eec 3 eec 4 we had the wiggle test probably would have found it that way too been retired for 10 years now but good and informative video !
Great video. Thank you. Your logical approach coupled with your great teaching is a win win for all your viewers.
This was some amazing advice, love your content and the ways you go about diagnosing these issues!
Rubber doughnut on AC clutch was my issue. Love your videos 👍
So, what did you have to do?
@@Jeff_Pendleton replace the AC clutch or the compressor with clutch assembly. Clutch is easier for DIY because you don't need to worry about refrigerant.
@@markwheeland3329 did you just replace the ac clutch assembly/pulley and bearing assembly
@@aaronq.6033 I replaced the entire compressor with a new one from Ford.
Typically, but not always, if the rubber donut goes the compressor is on its way out & is creating so much drag that it eventually shears the rubber in two. If your compressor was loud/rattly before it happened, do yourself a favor & change it.
great video, I can't believe the last tech couldn't figure out that they mangled the plug when they clearly forced a tester into it
That’s bada$$!!! Did something similar with an a/c blower motor connected directly to the battery to verify property operation.
FTM is more logical, precise and thorough than a computer.
And actual Ford dealerships
We might be related?
@@advorsky1 Yes, maybe. We should make contact.
True mechanic, with hands like that.
Was working on an 05 Tribute 3.0 today. AC was charged, fuse, plugs, controls, pressure switches were all good. Concluded the PCM was bad.
@16:27 your high side gage was shut off. i like to keep an eye on both low and high pressures. a low high side could be an undercharge that will show up on a really hot day. but yeah great video on how the simple things can fuel the parts self propelled howitzer.
The valve is only used for charging. In other words that valve only blocks flow to the machine not to the gauge which is why it was reading in the first clip even though it was closed.
Why wasn't the high side hooked up? Knda' nice to see the high pressure side as to the health of the compressor.
It was in the beginning, I can tell based on the output temp and low side pressure how healthy the compressor is so I rarely have to hook it up. I pretty much only use the high side line when diagnosing scroll compressors.
You go through pretty much the same steps I do. I do hate going in after someone else gave up on a repair.
Awesome! Enjoyed watching you deduce the problem.
awwwww luv me some boxers !!! great vid..about to have my 08 F150 AC revamped ....I tried to replace the compressor but made a mess of it...now its time to pay the piper...Im really dreading all my expensive stereo gear being jacked so its all going to come out..I did find someone local with 5 star review and pricing / hourly seems to be straightforward...
Helluva job man thanks for the knowledge
Great vid. I am so guilty of forcing a DVM probe into electrical fittings.... Won't do that anymore.... Thanks for the juicy information!!!
I'm having this same problem with my 2017 sierra. It would be great if it was a simple electrical issue but knowing my luck it isn't. Thanks for the video man 🤘🤙
Brian, AWESOME INFORMATION AS ALWAYS THANKS FOR SHARNG BROTHER.
My 2011 f150s no AC issue was my blend door not working. I pulled the head unit out & pulled the blend door motor out & turned the little thing open by hand & boom, AC works now.
You are a Ford professor 👍🏻
Thanks!
Thought the plug was my issue also. Running KOEO self test clutch line shows .02V when actuated (Backprobed), test probe confirms good ground. 12V direct to clutch activates and confirms good clutch. With vehicle running if i apply direct voltage to clutch it activates and pressures pull down perfectly. Live data stream on scanner says ECM thinks compressor is activated, both pressure switches good, dash switch registers......WTF am I missing?? Power lead wire to clutch has to be bad but can find a split stripped back to big wire bundle. Fuse is good and swapped relay with horn to be sure.....Anyone have any ideas?
During KOEO test check power and ground harness side with the connector disconnected. If it shows battery voltage but drops to your reading of .02v when back probed and loaded up by the clutch then you have an issue with either the clutch relay or the power side lead. Load test the positive wire and swap in a known good relay from the power box to see which.
@@FordTechMakuloco Reran the KOEO test with clutch wire removed, negative on wire grounded to battery and meter probing the hot side of the plug. This time when test activated meter read .04V. Returns to zero on test completion. Swapped Relays for horn and compressor testing function of both and achieved same results. Followed the clutch wires up to the disconnect plug on side of battery housing, unplugged and ran leads from + and - on battery to female pinset in disconnect for clutch wires. Clutch activates. Going to flip fuse box in the morning and test wires all the way to relay. Has to be a split under im thinking. Will pickup a few new relays also.
@@FordTechMakuloco Using multimeter to test relay socket, am I correct in thinking the leg #30 should show 12v with a battery ground and system on and good ac clutch fuse? If so I should be able to install a new fused power feed direct to that relay leg to solve my issue.
Thanks for the troubleshooting.
Leg 30 should have power at all times which is transferred to leg 87 when the relay is activated.
Inspiring, Brian. Thanks for taking the time. Excellent troubleshooting!
Wow your soooo knowledgeable!!!! I bet that rubber piece may went bad.
You are one smart cookie! Thanks very much.
Another Great Video... yep to large probes spreads connectors. sad the bad tech is so foolish and it came back on him... so glad you found the real problem...
Unfortunately most mechanics these days only rely and the computer to tell them what's wrong they don't use their brain like you do. thanks for the video get some A/C in that shop!
This is literally the dumbest comment on here. The “computer” doesn’t ever tell you exactly what’s wrong… This is the now common thought process of customers because of the free code reads lube shops and auto zones do. Gtfo.
I'm an electrician, good job, but on sell tes, 🚫 matter if is after making, all way id 3 resistors, so, I like how you did
ScannerDanner: 👏🏻👍🏻 Brian!!
Thanks for the great info Master tech, really helps. We have to se more vid with the dogs helping in the shop ✌🏼
most electrical problems occur at connections and are resistant by nature... at class we had to say that everyday... the teacher said it will help you as a electrical tech...
Definitely true especially on airbag systems.
Always waiting for this kind of videos. 👍👍👍👍👍
I loved this one!, nice job!
Thats an awesome tutorial on how to fix something that was not really broken just someone was not quite up to speed on checking with the test light lol ...could u tell me were my hvac module get its power from its on a 05 f350 king ranch thks ..luv the content keep up the good work..
Thanks for all your in depth content
Great vid Brian. Very thorough and great explanation. Thanks for sharing.
Any idea why my 09 would have poor air flow? I've changed all actuators, fan resistor, and fan and still don't get great flow on high. It sounds like it's blowing full but feels more like half, on heat or AC.
My fiancé has a 2017 F150 and while we were coming back from vacation, the AC quit. I had her pull over at a rest stop and discovered that the rubber part of the clutch had basically disintegrated leaving rubber flung all over everything. Truck had less than 33,000 miles on it and of coarse was out of warranty due to it being four years old.
This truck has the newer 1234yf refrigerant and none of the local shops were equipped to service vehicles with this new stuff so we had to take it to the dealer to get repaired. Just replacing the clutch was going to cost almost as much as just replacing the whole compressor so she had the compressor replaced. $1,100 later she has working AC again. We tried to get them to fix it under a good will warranty but no dice. Needless to say my fiancé who is a life long Ford owner was not impressed. Her last truck was a 1 ton 2003 Ford Super Duty that she bought new and it still had all of the original AC equipment and had never been recharged in the 14 years she owned it and it still blew cold air.
Great Video.
Just awesome! Thanks for all your vids.
Great video keep them coming
I have used the light bulb trick many times A 921 sits in there well
man that is some serious Sherlock Holmes work there! Bravo!
I don't have anything nice to say about people who "try" to diagnose but then create more problems from bad practices like jamming a test light into something.
Awesome video! Thank you for taking the time to make it and all the others that I have yet to watch, but will. I bought a 2013 F150 5.0 a few months ago and the AC was working until today. Your video(s) will put me on the correct way to troubleshoot the system. Thanks for the FORScan link!
Thanks for the videos. Question: 2010 F150 FX4 5.4L V8 w/ automatic climate control. A/C stopped working a couple of years ago. Finally got it diagnosed and needed a new compressor. New compressor has been installed, system charged to 58, new A/C pressure transducer, relays are good, fuses are good, put in a new blower motor resistor today, climate control cluster is functioning properly, had a second mechanic check PCM and control would send signal to turn on clutch, but it went from ON to immediately OFF. I brought it home and ran the Key On Engine Off test and clutch engaged just fine. Used Forscan to run the HVAC test and no faults. No HVAC DTC faults either.
Wondering if you have any suggestions on my issue (other than "give and up and sweat out the Texas Summer, buddy"). I did pull get the ProDemand schematic for my VIN number and page 2 of 3 shows the Instrument Cluster on MS CAN 10 and 9 on Computer Data Lines running to the PCM HS CAN - 43 and HS CAN + 59
(If you read this entire thing, thank you already for your time)
Thank you. Do you have any recommendations for a 2013 F150 that has intermittent hot/cold air when AC engaged? Thank you.
Hi there I have a Ford-150 everything is running very well. It’s only when I come to a complete. The oil gauge goes very low to nothing and AC will stop, but you could hear that something turns back on when you’re about to step on the seller raider
Hi, may I ask what are the other things to check out for the AC system in my Ford Expedition 2003 model. What happened is it suddenly stop releasing cold air. We already checked the fuse (all ok the filament are still intact), AC Compressor clutch still working we bypass it and the AC pressure switch we conduct testing on it but what happen in the fuse box there's no power supply in the fuse for AC and also the AC compressor as well. Loved your videos. Hope you notice me.
I have a '17 Transit 150 with the 3.7 and it has "warm" A/C issues. L/S, H/S pressures are good and compressor is coming on, but I've had a few of the micro cartridge fuses for the electric fans blow, so I replaced them with ones from O'Riely's, but their fuses look like they're almost blown. Is it best to get the Motorcraft fuses for this? Are the Bussman ones garbage?
Can the coil on the compressor of a 2007 Expedition blown the 10 amp fuse when it goes bad? Clutch doesn't engage. But blows the fuse whenever I hit the A/C button.
My 2009 f150 AC compressor seems to kick on and off every couple seconds but it will blow cold at certain times, I’m down to replacing the thermostatic expansion valve, part of me feels like here could be a restriction, I charged it today and hooked up my gauges and the compressor would kick on but then kick back off and did that a few times! Would you say I’m on the right track?
2010 f150xlt supercrew 5.4. I have had it worked on several times in the last few years. It barely blows and never gets more coolish air. We also have an 03 f150xl that will freeze you as well as a 2020 xl supercrew that freezes you. Mine never gets cold. No one can figure it out.
Edit: My 15 yr old cycled through the fan settings and turned it off and on and it worked a little better 2 days ago.
I got in my 2010 today and the AC is colder than it has ever been. I drove 20 minutes then shut it off for about 15 min. When I walked out it was hissing. The lines blew out and lost all freon.
The shop says the gauges don't read correctly on my truck. The manual gauges and AC machine showed equal after replacement on 100degree outside temp. The system in my truck has been completely replaced except the lines. I'm at a loss and can't afford to keep putting money into the system. The truck is great other than the AC. @fordtechmakuloco
Had a 2010 stop in today same issue gonna more indepth when he stops back later this week the I check this video out I couldn't find the the dryer on the truck.
With those pins in the plug spread out, it makes me wonder if the original clutch was even bad. That doesn’t matter, the owner or previous mechanic ( I use the term mechanic loosely) has a parts cannon!
Presently going through this on my 2004 Ford Taurus...
Going to try this. Ac compressor not turning on, I pulled on fuse and put another in and it spun for half a second and now nothing
Great explanation 👍
Do you have a video about why fans on a 13 f150 would run on high with ac or defrost on. I’ve got ice cold ac ac pressure sits around 30 and coolant is full. The temp on the dash is normal and no lights or codes
You could apply 12v to the clutch coil. Or see if it’s getting power at the connector
That rubber donut is ate up on mine would that mean a clutch failure or my compressor locked up
I had bad O2 sensors replaced last Friday, and when I picked up the truck the Air Conditioner now doesn't work. Would there be some connection?
On my 2011 f150 XLT Ecoboost , the AC clutch comes on and stays on , but does not blow cold air. I am thinking low coolant but not sure. Also, the fan used to stay on the whole time the AC was on but now the fans shuts off but no cold air. I can feel cold air very briefly upon startup.
After the blower motor wearing out caused the blower switch , resistor and pigtails failed on my friends 2010 E250, 5.4. I pointed out he could install a heavy duty switch to the ground side of the fan to bypass the fan switch and resistor and now on the hottest days in so cal inland empire the A/C blows even harder do to reduced voltage drop and it still goes off with the key do to the blower relay.
Hi , mine just went out its a 2011 f150 eco it blows sooo cold with 234k miles until just about an hr ago . I started it up an it made a sqilling noise an went blowing hot. I turn it off an then back on an it did it alittle again so I turned the ac back off an got home tried it again but no noise this time an blowing hot.... wonder what went out? Thankbyou.
PinOut: Do you know what the connector voltage settings are for a 2012 Ford Escape low pressure switch and do you know what the Ohm values are for a 3 pin HVAC low pressure switch are?
Hey just out of a curiousity have you every had a no power to AC clutch, clutch can be powered up separately, no issues with pressure, low pressure cycle switch replaced, ambient temp replaced, AC clutch relay and all fuses replaced just in case. The relay clicks when the AC request is made, but no power is getting to the AC clutch. Ford dealership wants to replace the compressor, which I ask: ok if the compressor is bad, please tell me how you know, and if we replace it please tell me how you know it will get power? Just curious as I can't seem to find a high pressure sensor listed in any diagram, and I am curious as to how the EVDC sensor factors in? Thanks, your videos about diagnosing components helped out and showed no power was getting to the clutch. Tech didn't even test the AC clutch, just immediately went to replace the compressor, despite being told that another shop tested everything and couldn't figure out the now power to the clutch issue.
Hey FordTechMakuloco I have a cord expedition king ranch 2006 I have a mechanic working on the ac he fixed the leaking and added a new fuse box he says the ax works when it’s direct but the compressor doesn’t want to click on when it’s not directly connected any ideas?
I like how you explain this problem thanks 😊
I have a 2012 svt raptor and the clutch keeps engaging and disengaging. I drained the coolant, pulled a vacuum and reserviced it with 21oz refrigerant per the vehicle spec. Pressures are around 35 low and 150 high…the compressor still keeps cycling after about 30 seconds…runs,stops,runs,stops…..any ideas? Any help greatly appreciated!
2013 super crew Lariat. No clicking, seats stil cool. Blend door?
Do you have low prossure switch or drucksensor BT43 19D594 AA for ford fiesta ecoboost 1.0?
Having a problem with my 150 not sending signal to the clutch to engage. Can't figure it out. Everything seems to be ok. Hope this helps point me in the right direction
HELP. 2002 ford explorer 4x4 xlt 4.6 v8 no 4x4 new module no switching at transfer case. Any help on testing at encoder mtr
There is an electronic module on the transfer case itself. He has a video of it on F150’s. It could have gone out.
That was an awesome video!! Thank you!