Sounds like the car suffered front end damage. Whoever made the repairs forgot to swap over the temp sensor from the old radiator to the replacement one.
Not so sure there is a budget concern, the owner has a lot of parts in the trunk that likely weren't needed. Time for a coolant temp switch and a condenser cooling fan motor or motor assembly. Might find a used one as nothing shows on Rockauto for A/C fans. Makes a lot of sense to verify the wiring and relays for integrity. Those cooling fan wires left unplugged from their sensors/switches however, indicate someone was messing around and left their work incomplete which is why the radiator fan is on 100%. He forgot to include that bit of info in his 2 page essay.
I agree, the owner just sounds abit cheap, i guess when the car needs an oil change that will be too much $ also ? the owner could probably find a really close match for the fan in the junk yard.
Nice breakdown on Toyotas crazy three relay cooling fan operation. Even though it looks complicated it apparently prevented disaster. He had one fan working and a missing temperature switch and still not over heating. Lol
Ivan, you had a chance to frighten the owner, the words: Part 1 of 20 :-D I have to give it to the owner, he tryed to fix it himself and didn't damage anything, and he kept all the parts he removed.
Ivan: I’ve been working on auto electrical for almost 50 yrs. & I really enjoy your “ thought process” ! You think out load because you have to hear your own voice , which makes sense to you, but in a garage atmosphere, my guys think I’m losing it…. because I talk to myself too much ! I am my best friend, for things make sense to me,,, & they don’t understand what’s going on other than replacing burnt fuses! LOL ! You are good ! You would be lying if you said that you didn’t learn something new when you “ pull back the Onion ! That one thing,,, you will forget in a few months if you don’t see the exact problem on the same model car ! LOL !
Are you old enough to work on that car! Your awesome you and( SMA Eric O) are my guys.Honest straight to the point kind of diag. Working people need techs like you fair honest and fixed! Don't change ! That's why we watch.
that shuddering is probably because around 60 the torque converter is right on the edge of locking and unlocking, depending on engine load. add to it 232k on the odo its probably lacking a little power so any small variable will try to unlock/lock it. those torque converter clutches wear out too.
I believe that wire to the ECM is just to tell it that the fan(s) are on so it can adjust for load. The control is all old school thermo switches and relays.
I owned a 93 Celica with the same engine (there wasn't much difference between the 5th and 6th gen). I had an almost identical issue with my cooling fan running non stop. Turns out one the wires on that lower rad temp sensor had broken inside near the sensor connector (looked fine visually - probably salt corrosion). This caused the same thing electrically which put the fan in fail-safe mode. Miss that car!
I think the ecm give some extra protection by giving a ground when instrument water temperature indicator sensor (which you did not show the connection) peg up.its a failsafe protection when radiator water temp fail to open when over-temp.just my logic.
Keep in mind that grounding turns off fans. I think it's more likely an input to the ECM to let it know that either the engine or A/C has requested cooling.
In part 2 you disabled the EGR valve by I will assume plugging the vacuum line otherwise you would have a vacuum leak. The Celica is OBD2 correct so by disabling the EGR wouldn't that throw a code? If it threw a code wouldn't that put the ECM or PCM into a limp mode?
I was perfectly happy buying cheap china parts from Rockauto. I never worried about them dying before their time. I loved saving the money. NOW, I find my self buying only name brand and spending more money. THanks a lot!
I think those had a egr vacuum modulator, if those get goofy or have a vacuum/pressure delay/supply issue, like clogged/rusted steel tubing or the exhaust port tap(toyota loved to use steel tubing) all sorts of bad things would happen, from mild to major stumbles or complete part throttle/tip in cutout (old carbureted 22R's were bad for that) I don't recall if the egr valve is bleeder type or not, if it is and rusted it may not be bleeding off enough and causing over-opening. head bashing ensues. other thing, maybe an evap. purge flowing too much or charcoal filter fuel soaked.
lol! proudly made in china. innuendo is striking. proudly made in usa with chinese sourced parts is what i see when repairing my usa assembled truck! same junk but that's ok huh? if you have a problem with chinese sourced components you 'd be best served to focus your attention on greedy ,sleezy usa merchants who are willing to contract, in china, for the manufacture of the lowest grade components for resale to usa citizens and around the world, for the biggest profits. china will manufacture whatever the sleazy greedy merchant wants. most discount chains are usa based and owned. talk about conning people. carpet baggers blaming the "we loved to blame them" chinese. same as the made in japan junk at the 5&10 store during the 50-60's.
Haha I have a 95. This thing refuses to die. I haven't touched anything in the engine bay except thermostat and battery since 2014. Might need a TB now that it hit 300k
joins the owner in the guessing game, but I'd guess bad or unhooked radiator coolant temp sensor/s and an EGR valve issue flowing too much, but maybe evap. purge issue. now time to watch and see.
its irritating trying to find complete wiring diagrams without a pro subscription, I have a diy sub to all data for my truck and its missing a fair amount of diagrams, is disorganized also- the pro version is not..... its just rather expensive for the few (5) vehicles we have.
Segue - My then teen aged son (he just turned 40) had just learned to drive, one of his buddies had an old Taurus with the exact same problem. At that time they used a GEM module (a metal box, full of mostly relays) to run many of the under hood items. I pulled the box off, cut off the rivets holding the cover on, hoping for a "Russian fix". None of the relays could easily be replaced, nor could I get a file/sandpaper in between the contacts to clean them. Of course the kid had no money and there are no "auto recycling yards" near by. I put the metal cover back on loosely. I took the handle of a screwdriver and gave it several good whacks. IT STARTED WORKING ! I used electrical tape to hold the cover back on. I was a "legend" in the neighborhood !
Hi Ivan, another great diagnosis. I have a 2000 Camry with the V6 1MZ-FE motor. Same set up with the cooling fans. I replaced the AC trinary switch from Rockauto and had the fans run at high speed as soon as the car was startedd. Even though this was supposed to be the correct part, it would be off at low pressure as it should to cut the compressor and off at high pressure to cut the compressor. But it also controls the fans when the AC pressure in the condenser is high and should turn off to make the fans run in parallel. But when I put the switch in, the fans ran at high speed as soon as started. So this was not the correct switch. Found a Denso one at the wreckers that was labelled OFF, ON, OFF. This is the correct part. Saw a Corolla where the Denso switch was labelled OFF, OFF, OFF. So Toyota changed the set up for different models/years. Not surprisingly, one method to check if the fans are both working is simply to disconnect the AC trinary switch, or the connector going to the rad coolant temperature sensor or the connector going to the fans. Needless to say, this problem drove my crazy. The factory service manual provided the answer.
I've been watching a lot of your videos being home on Disability. I just started panicking not being able to find part 2 to this video until I realized you just uploaded it today! Duh : Thanks for giving me terrific diagnosis tips and something to keep me entertained. I love watching you do the actual fixes the most because I don't get the scanner stuff all the time. But you sure gotta be smart to attack this stuff. Wished you lived out here in So Cal. You'd make a Killing!!!
What do you mean you haven't seen one of those in a long time. All you need to do is watch Scotty Kilmer's channel and I would bet at some point you will see one of those. Great video!
Son in from Tokyo, borrowed a mid 2010 Celia that has an oil drip🤨, pos gets to sit on street after piss’n on my driveway. And no I’m not looking for trouble🤣
Ivan on to part II. Like how you do everything possible to help the customer. Also like how you show the system functionality through the wiring diagram. Looking forward to part two. 😊
Ivan, it's your fault. Not really. Advertising the Aultel. Now for $600.00 you can do your own diagnostics, run down to the parts store, buy all these Chinese parts, come home and install them. Then they will start scratching their heads wondering why the vehicle still doesn't run. Then they come to you with a trunk full of used parts wanting you to fix it, but wait, don't spend a lot of time because I replaced everything I was supposed to. But the Aultel only tells you so much. Watching not only your videos but others really make me laugh. Every back yard mechanic wants to be a mechanic but no matter what you give them to work on these newer vehicles, they still have no idea what to do. Then once you diagnose them, just tell them so they can take it home and really screw it up more, not realizing that the car has to be programmed most of the time. So back to you. Just love it. lol
Scalded cat=pouring boiling water on a cat will make him move very quickly. Scolded cat=speaking harshly to a cat may or may not cause a response. The customer needs a spell checker!
The customer wrote you a history book but didn't mention any previous fan work. A plug in the radiator where a relay goes? A orphan wire just hangin out? Things that make you go Hmmmm.
I always thought the computer looked at the ECT and when the computer saw a certain voltage it close the relays turning on the fans I did not know the radiator had a pressure sensors like the AC douse.
When you go through a manufacturers electrical systems school, nearly all scenarios begin at the desk by describing a problem, then immediately going to the schematic to logic your way to the problem. 4 out of 5 times you can figure it out before even popping the hood. Take the time to RTFB.
Hey Ivan. I had a customer with that surging problem!! This video will help me a lot on this job. I will check it out! Awesome video!! Great diagnosis!!
"Rev up your engine!" - Scotty Kilmer It seems that a new fan and temperature switch is cheap compared to the parts the customer already spent. Love the diagnostic, always seems easy when you do it Ivan.
i sure wish i could have you look at my moms 93 toyota celica gt convertable been at shop for get this 9 months and towed it home yestarday not fixed of course
@@PineHollowAutoDiagnostics yes it is it runs rough and dies put alot of parts on it at first she could put seafoam in it and it would run ok for a little while thrn more seafoam.so many parts to name all the obvious fuel pump distributor.t-chain,ecm........i watch your channel alot you guys are fantastic at what you do,enjoy watching and learning ,thanks
Excellent video! It should be relatively easy to find a fan, and hopefully the coolant temperature switch won't be a problem to obtain. Looking forward to part 2.
Good diagnostics but the removed parts and that circuit isn't typical. The cooling fan being on all the time in cold weather will keep the engine cooler and prolong warmup, if trips are shorter it may never warm up. Porr performance guess, at 25 years and 230K miles parts can be failing like the transmission or ignition parts, surges could be a transmission works but isn't the best, the injectors or other parts providing gas and spark work kind of but have all those years and millage cycles on them.
Certainly not trying to tell a fisherman how to fish but a fan being in a constant on position makes it very difficult for the engine to get up correct operating temperatures and can cause a bucking problem ask me how I know.... Years before UA-cam I ran into that with a Mazda GLC where the fan was wired up because otherwise it wouldn't work and I had no knowledge of basically anything other than how to change a tire and change your oil and my car could not pass in mission controls because of the constant on fan
@@PineHollowAutoDiagnostics I certainly understand what you're saying by it allowing more or less water through the water jackets in the block... Have watched the gauges jump back and forth up and down because the fan on the Mazda GLC was on at all times I finally passed the emissions test by pulling into the emissions place got out shut off the fan pulled into the bay and I passed I guess that's my individual case study perhaps not a reality case study lol
Toyota fan switch is wired from the relay ground wire when the switch is defective or unplugged the fan is engaged, use your multimeter to do a continuity check from the fan switch wire to the relays wiring, if you do not find it there it's broken or wired wrong , the fan switch is on the thermostat housing it's a single wire there's also a single wire gauge switch it's normally smaller than the fan switch, fan switch wire is usually white and gauge switch wire is usually yellow green , hope that helps . Blessings.
@@PineHollowAutoDiagnostics wiring diagram is good but they tend to defer a little with wiring colors and relay pin location, I have a ee100 corolla and a ae 100 electrical wiring diagram manual and it's the same across them all .
those are fun cars I had one at one time, looking forward to watching the video find out what the deal is. It was 111 yesterday you were making me sweat.
You might have fixed the stumbling by swapping back the OEM MAF if some other part the owner replaced after that was actually causing the problem but the Chinese MAF mimicked the SAME problem. Even though it's as rare as lighting striking twice in the same place I've actually seen such problems
So the main fan died, an he must have noticed engine running bit too hot.. then remembered grandpa once told him overheating is from a bad radiator, so he replaced it with cheapest one he could find which didnt come with the temp sensor, assumed the extra connectors weren't needed, an called it a day.
@@PineHollowAutoDiagnostics Well, to me a garage is like a temple of engineering and technology, the place where real facts and logic matter above all. Also the place that brings people together in a pursuit of doing good things like building and repairing stuff. The politics is the antithesis of that as it is usually divisive, lacks logic and is based on emotions rather than facts. That is the source of my disappointment. But don't get me wrong, it is your man cave and it is up to you what you have there 🙂
He said that he "swapped relays" ---- So to me, it sounds like he put that "normally closed" relay in the wrong place. Should be an easy fix by swapping the relays where they should go.... place your bets. lol
You would ASSUME that he put them back where they belong ! The fan is junk,Ivan “hot” wired it to no avail ! That motor is “ junk” ! Rad sensor & new fan,,,,,,you betcha lady,,,, it will work !
@@fredwalker839 Yeah. this was my guess before watching.... I've pealed those fans apart before and fixed them. It's usually just a bad connection where the wire is soldered to the coil/ winding on the inside. That winding's wire is so small that it can break with simple vibration, usually right at the solder joint. Very easy to fix most of the time..... Sometimes the entire winding will be charred and black--- and those are done for good.. She's cooked. lol
The wiring diagram doesn't seem to suggest that the two radiator fan switches vary by engine. I'm asking myself why they would engineer the system with two switches, and the only thing I can figure is for fail-safe purposes. For example, if the radiator cracked and there was no coolant in the radiator, that switch wouldn't activate because it wouldn't be in contact with the coolant. However, the secondary switch on the engine is in an aluminum engine part, which would be able to activate as the engine heats up, even without coolant contact. I may be interpreting the diagram wrong, but one switch appears to be a two-wire, and the other appears to be a single-wire case grounded unit. Also, take notice of the (#1) and (#2) notations on the two legs of the circuit.
Keep in mind that this system is such that "open" means the fans need to run. If both water temp switches are present, the fans would only run if both indicate an overheat condition - quite the opposite of fail-safe.
@@russellhltn1396 Yes, now that I look at it again, I was overthinking the whole thing. This is quite an interesting system, and it was hard to view everything in the video. My sister had a '91 Camry, and the wire corroded at the radiator fan switch terminal, which kept the fan on all the time. It was an easy fix, but I was always intrigued how the open circuit caused the fan to stay on all the time. A lot of other systems seem to work on the opposite principle.
Sounds like the car suffered front end damage. Whoever made the repairs forgot to swap over the temp sensor from the old radiator to the replacement one.
Not so sure there is a budget concern, the owner has a lot of parts in the trunk that likely weren't needed.
Time for a coolant temp switch and a condenser cooling fan motor or motor assembly. Might find a used one as nothing shows on Rockauto for A/C fans.
Makes a lot of sense to verify the wiring and relays for integrity. Those cooling fan wires left unplugged from their sensors/switches however, indicate someone was messing around and left their work incomplete which is why the radiator fan is on 100%. He forgot to include that bit of info in his 2 page essay.
I agree, the owner just sounds abit cheap, i guess when the car needs an oil change that will be too much $ also ? the owner could probably find a really close match for the fan in the junk yard.
Fan and a switch are cheap money. I would want it fixed right. Look forward to seeing the stumbling fix.
Nice breakdown on Toyotas crazy three relay cooling fan operation. Even though it looks complicated it apparently prevented disaster. He had one fan working and a missing temperature switch and still not over heating. Lol
How did you get Scotty Killmers car?
A 2 page essay and told “don’t spend money”........
Weird
My five words. Come pick your car up.
Just replace the temperature switch.
Ivan, you had a chance to frighten the owner, the words: Part 1 of 20 :-D
I have to give it to the owner, he tryed to fix it himself and didn't damage anything, and he kept all the parts he removed.
Ivan: I’ve been working on auto electrical for almost 50 yrs. & I really enjoy your “ thought process” ! You think out load because you have to hear your own voice , which makes sense to you, but in a garage atmosphere, my guys think I’m losing it…. because I talk to myself too much ! I am my best friend, for things make sense to me,,, & they don’t understand what’s going on other than replacing burnt fuses! LOL ! You are good ! You would be lying if you said that you didn’t learn something new when you “ pull back the Onion ! That one thing,,, you will forget in a few months if you don’t see the exact problem on the same model car ! LOL !
Are you old enough to work on that car! Your awesome you and( SMA Eric O) are my guys.Honest straight to the point kind of diag. Working people need techs like you fair honest and fixed! Don't change ! That's why we watch.
Hopefully the owner get a new temp switch and fan. I’m curious of stumbling issue, I’m experiencing a similar issue
Part 2 will answer all your questions 👍😉
Bright Sunny day. Convertible top down. All that is missing is that beautiful wife of yours sitting in the passenger seat. Thank you for the video.
that shuddering is probably because around 60 the torque converter is right on the edge of locking and unlocking, depending on engine load. add to it 232k on the odo its probably lacking a little power so any small variable will try to unlock/lock it. those torque converter clutches wear out too.
Good theory, but this wasn't a case of torque converter shudder 🙂
I believe that wire to the ECM is just to tell it that the fan(s) are on so it can adjust for load. The control is all old school thermo switches and relays.
These old Toyotas can have so many annoying little issues, but they keep running.
At 0: 32, "Automatic transmission, unfortunately", I'm with you on that Ivan!
I think you should have tested it before changing the MAP, just to verify the customer complaint.
Not to “ over rule” but I would have too ! Just to verify Chinese junk is our biggest electrical hurdle ! New does not mean good! Amen !!
Eh didn't want to waste my time with that lol
I owned a 93 Celica with the same engine (there wasn't much difference between the 5th and 6th gen). I had an almost identical issue with my cooling fan running non stop. Turns out one the wires on that lower rad temp sensor had broken inside near the sensor connector (looked fine visually - probably salt corrosion). This caused the same thing electrically which put the fan in fail-safe mode. Miss that car!
I think the ecm give some extra protection by giving a ground when instrument water temperature indicator sensor (which you did not show the connection) peg up.its a failsafe protection when radiator water temp fail to open when over-temp.just my logic.
Perhaps...also it might be an input to the ECM to bump up the idle speed when the fans are running full blast 👍
Keep in mind that grounding turns off fans. I think it's more likely an input to the ECM to let it know that either the engine or A/C has requested cooling.
My drink came out my nose when you said "it's not a Hyundai or Volkswagen"
In part 2 you disabled the EGR valve by I will assume plugging the vacuum line otherwise you would have a vacuum leak. The Celica is OBD2 correct so by disabling the EGR wouldn't that throw a code? If it threw a code wouldn't that put the ECM or PCM into a limp mode?
Somebodies messin where they shouldn't have been messin. " SCOLDED CAT " LMAO. At the least it could have been a 5 speed.
I was perfectly happy buying cheap china parts from Rockauto. I never worried about them dying before their time. I loved saving the money. NOW, I find my self buying only name brand and spending more money. THanks a lot!
Great breakdown on how these relays work! Always stick to your basics when troubleshooting electrical concerns. Works every time! Good job Ivan!
OEM diagram was absolutely key here 🙂
I think those had a egr vacuum modulator, if those get goofy or have a vacuum/pressure delay/supply issue, like clogged/rusted steel tubing or the exhaust port tap(toyota loved to use steel tubing) all sorts of bad things would happen, from mild to major stumbles or complete part throttle/tip in cutout (old carbureted 22R's were bad for that)
I don't recall if the egr valve is bleeder type or not, if it is and rusted it may not be bleeding off enough and causing over-opening. head bashing ensues.
other thing, maybe an evap. purge flowing too much or charcoal filter fuel soaked.
lol! proudly made in china. innuendo is striking. proudly made in usa with chinese sourced parts is what i see when repairing my usa assembled truck! same junk but that's ok huh?
if you have a problem with chinese sourced components you 'd be best served to focus your attention on greedy ,sleezy usa merchants who are willing to contract, in china, for the manufacture of the lowest grade components for resale to usa citizens and around the world, for the biggest profits. china will manufacture whatever the sleazy greedy merchant wants. most discount chains are usa based and owned. talk about conning people. carpet baggers blaming the "we loved to blame them" chinese. same as the made in japan junk at the 5&10 store during the 50-60's.
Haha I have a 95. This thing refuses to die. I haven't touched anything in the engine bay except thermostat and battery since 2014. Might need a TB now that it hit 300k
joins the owner in the guessing game, but I'd guess bad or unhooked radiator coolant temp sensor/s and an EGR valve issue flowing too much, but maybe evap. purge issue.
now time to watch and see.
Maybe that wire at the bottom that was just hanging out should be connected to the coolant temperature switch?
its irritating trying to find complete wiring diagrams without a pro subscription, I have a diy sub to all data for my truck and its missing a fair amount of diagrams, is disorganized also- the pro version is not..... its just rather expensive for the few (5) vehicles we have.
Not only do I love your diagnostics and detail in explaining but love your Trump Support!!!
A fan motor and a temp sensor….how expensive can it be? I’d fix it.
From Amazon,,, cheap,,,fix your problem,,,,get dealer parts for this guy’s Baby!
Segue - My then teen aged son (he just turned 40) had just learned to drive, one of his buddies had an old Taurus with the exact same problem. At that time they used a GEM module (a metal box, full of mostly relays) to run many of the under hood items. I pulled the box off, cut off the rivets holding the cover on, hoping for a "Russian fix". None of the relays could easily be replaced, nor could I get a file/sandpaper in between the contacts to clean them. Of course the kid had no money and there are no "auto recycling yards" near by. I put the metal cover back on loosely. I took the handle of a screwdriver and gave it several good whacks. IT STARTED WORKING ! I used electrical tape to hold the cover back on. I was a "legend" in the neighborhood !
Bad or missing Relay. This was all over the Toyota Celica forums as a pattern failure. Don't Remember which one though.
Interesting. Never seen a Toyota OEM relay fail in any way... Or decide to take a hike on its own 😅
I rest my case ! Can’t remember everything, with all wiring I do,,,,, 3 months ago was 2 lifetimes ! LOL
Hi Ivan, another great diagnosis. I have a 2000 Camry with the V6 1MZ-FE motor. Same set up with the cooling fans. I replaced the AC trinary switch from Rockauto and had the fans run at high speed as soon as the car was startedd. Even though this was supposed to be the correct part, it would be off at low pressure as it should to cut the compressor and off at high pressure to cut the compressor. But it also controls the fans when the AC pressure in the condenser is high and should turn off to make the fans run in parallel. But when I put the switch in, the fans ran at high speed as soon as started. So this was not the correct switch. Found a Denso one at the wreckers that was labelled OFF, ON, OFF. This is the correct part. Saw a Corolla where the Denso switch was labelled OFF, OFF, OFF. So Toyota changed the set up for different models/years. Not surprisingly, one method to check if the fans are both working is simply to disconnect the AC trinary switch, or the connector going to the rad coolant temperature sensor or the connector going to the fans. Needless to say, this problem drove my crazy. The factory service manual provided the answer.
Just call scotty, he will fix it after he gives it a tongue bath.
😂😂😂😂😂😂😂😂😂😂😂😂😂
The customer obviously loves that car 👍.
Very Interesting video Mr Ivan, I have found out that these toyota fan system is very dependable unless like in your case has been manipulated.
I've been watching a lot of your videos being home on Disability. I just started panicking not being able to find part 2 to this video until I realized you just uploaded it today! Duh : Thanks for giving me terrific diagnosis tips and something to keep me entertained. I love watching you do the actual fixes the most because I don't get the scanner stuff all the time. But you sure gotta be smart to attack this stuff. Wished you lived out here in So Cal. You'd make a Killing!!!
What do you mean you haven't seen one of those in a long time. All you need to do is watch Scotty Kilmer's channel and I would bet at some point you will see one of those. Great video!
Son in from Tokyo, borrowed a mid 2010 Celia that has an oil drip🤨, pos gets to sit on street after piss’n on my driveway. And no I’m not looking for trouble🤣
Just like home delivery,,,,block off your driveway ! LOL
Possibly the pcm is looking for a feed back voltage for load?
Ivan on to part II. Like how you do everything possible to help the customer. Also like how you show the system functionality through the wiring diagram. Looking forward to part two. 😊
5S-FE motor one of Toyota's best ever as long as you do timing belts.
Good diagnosis. Definitely needs that coolant switch.
Can I put the radiator temp switch where the radiator drain plug goes ?
Nice to see a customer who really cares about his vehicle. Granted he's on a budget but I bet he would want it running as designed.
The stumbling sounds like ignition problems, but I'll watch part 2 to see.
could it be overcooling if fan runs all the time
Just when you started reading the letter: suspect counterfeit parts.
You couldn’t resist a celica!
i got the best socket i have ever had from snapon the other day its 8mm on one side flip over 10mm on the other side they make them in several sizes
Ivan, it's your fault. Not really. Advertising the Aultel. Now for $600.00 you can do your own diagnostics, run down to the parts store, buy all these Chinese parts, come home and install them. Then they will start scratching their heads wondering why the vehicle still doesn't run. Then they come to you with a trunk full of used parts wanting you to fix it, but wait, don't spend a lot of time because I replaced everything I was supposed to. But the Aultel only tells you so much. Watching not only your videos but others really make me laugh. Every back yard mechanic wants to be a mechanic but no matter what you give them to work on these newer vehicles, they still have no idea what to do. Then once you diagnose them, just tell them so they can take it home and really screw it up more, not realizing that the car has to be programmed most of the time. So back to you. Just love it. lol
It is what it is haha
Scalded cat=pouring boiling water on a cat will make him move very quickly.
Scolded cat=speaking harshly to a cat may or may not cause a response.
The customer needs a spell checker!
I know! Sorry I should know better. My wife scalded me for it also, lol.
I bet there is only part 1 and Ivan called it that just to mess with the owner 😂
The customer wrote you a history book but didn't mention any previous fan work. A plug in the radiator where a relay goes? A orphan wire just hangin out? Things that make you go Hmmmm.
I did not know of any previous fan work. Yes there are some things I should have figured out but maybe I'm not that smart.
Remember, we taught them how to make them crappy .
Scotty Kilmer car 😅😅😅😅
I say try some injection cleaner to see if that cures the stumbling.
Uh oh, a 90's Toyota. WWSKD? (What would Scotty Kilmer do?) :D
I'm guessing something like, ...watch my video on how to make your car run better with a bit of spray cleaner....
His worst fears realized 3 part series
Funny thing, when I scold my cat, she hardly moves at all.
🤣
Ivan: making car repair great again!
Every dual fan system is wired so that it one fan goes bad, the remaining fan goes on full time high speed
Actually in this case it shuts the other one down as well 😂. At least in low speed mode 😉
I always thought the computer looked at the ECT and when the computer saw a certain voltage it close the relays turning on the fans I did not know the radiator had a pressure sensors like the AC douse.
When you go through a manufacturers electrical systems school, nearly all scenarios begin at the desk by describing a problem, then immediately going to the schematic to logic your way to the problem. 4 out of 5 times you can figure it out before even popping the hood.
Take the time to RTFB.
Hey Ivan. I had a customer with that surging problem!! This video will help me a lot on this job. I will check it out! Awesome video!! Great diagnosis!!
So the part that I got from Rockauto was not defective, just the wrong part for this vehicle even though it said it was for a 2000 Camry.
Make america great again?
"Rev up your engine!" - Scotty Kilmer It seems that a new fan and temperature switch is cheap compared to the parts the customer already spent. Love the diagnostic, always seems easy when you do it Ivan.
i sure wish i could have you look at my moms 93 toyota celica gt convertable been at shop for get this 9 months and towed it home yestarday not fixed of course
What's wrong with it? 9 months is ridiculous 😅
@@PineHollowAutoDiagnostics Pulled all the fuses 9 times…..what,,that didn’t fix it! Dah ! LOL
@@PineHollowAutoDiagnostics yes it is it runs rough and dies put alot of parts on it at first she could put seafoam in it and it would run ok for a little while thrn more seafoam.so many parts to name all the obvious fuel pump distributor.t-chain,ecm........i watch your channel alot you guys are fantastic at what you do,enjoy watching and learning ,thanks
That would be "scalded cat".
Scolded would make sense too... BAD KITTY! 😻🤣
Excellent video! It should be relatively easy to find a fan, and hopefully the coolant temperature switch won't be a problem to obtain. Looking forward to part 2.
Coolant temp sensor....Ebay special. My guess from 1:29 into the video
Good diagnostics but the removed parts and that circuit isn't typical. The cooling fan being on all the time in cold weather will keep the engine cooler and prolong warmup, if trips are shorter it may never warm up. Porr performance guess, at 25 years and 230K miles parts can be failing like the transmission or ignition parts, surges could be a transmission works but isn't the best, the injectors or other parts providing gas and spark work kind of but have all those years and millage cycles on them.
Certainly not trying to tell a fisherman how to fish but a fan being in a constant on position makes it very difficult for the engine to get up correct operating temperatures and can cause a bucking problem ask me how I know.... Years before UA-cam I ran into that with a Mazda GLC where the fan was wired up because otherwise it wouldn't work and I had no knowledge of basically anything other than how to change a tire and change your oil and my car could not pass in mission controls because of the constant on fan
Actually the thermostat is what controls operating temp setpoint... Fan can run all day long, won't hurt anything 😉
@@PineHollowAutoDiagnostics I certainly understand what you're saying by it allowing more or less water through the water jackets in the block... Have watched the gauges jump back and forth up and down because the fan on the Mazda GLC was on at all times I finally passed the emissions test by pulling into the emissions place got out shut off the fan pulled into the bay and I passed I guess that's my individual case study perhaps not a reality case study lol
👍🏻👍🏻👍🏻🌷
Ivan making his own power probe with 17 pieces of wire and 16 connections haha...
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Toyota fan switch is wired from the relay ground wire when the switch is defective or unplugged the fan is engaged, use your multimeter to do a continuity check from the fan switch wire to the relays wiring, if you do not find it there it's broken or wired wrong , the fan switch is on the thermostat housing it's a single wire there's also a single wire gauge switch it's normally smaller than the fan switch, fan switch wire is usually white and gauge switch wire is usually yellow green , hope that helps . Blessings.
Or just follow the wiring diagram 😁
@@PineHollowAutoDiagnostics wiring diagram is good but they tend to defer a little with wiring colors and relay pin location, I have a ee100 corolla and a ae 100 electrical wiring diagram manual and it's the same across them all .
Great car.
The wire going to the ECM likely tells the ECM to raise RPM because AC is running
those are fun cars I had one at one time, looking forward to watching the video find out what the deal is. It was 111 yesterday you were making me sweat.
That three relay paralel/series cooling fan system is used in many French PSA cars.
Very good video I like it. Question is how do you access the wiring diagram and labor guides as well?
For once a partscannon who put proper Japanese parts on it not some cheap auto zone or eBay special parts on it
Except the MAP sensor 😅
@@PineHollowAutoDiagnostics Ya that was the worst kind of arftermarket it was a eBay special
Finding an intermittent stumble under very specific conditions does not sound fun. Drive it until it gets worse. 😂
You might have fixed the stumbling by swapping back the OEM MAF if some other part the owner replaced after that was actually causing the problem but the Chinese MAF mimicked the SAME problem.
Even though it's as rare as lighting striking twice in the same place I've actually seen such problems
I noticed he didn't verify customer complaint before making changes. That can come back and bite.
Aaah! Have to wait! Oh well, hi Ivan, hope you have a great day!!
Unbelievably fast diag on the fans Ivan! Thanks!
EGR could be a vac leak, bad hose, bad egr valve etc.
Oh boy. We have a part 1. Lol.
can't wait to see remaining parts
So the main fan died, an he must have noticed engine running bit too hot.. then remembered grandpa once told him overheating is from a bad radiator, so he replaced it with cheapest one he could find which didnt come with the temp sensor, assumed the extra connectors weren't needed, an called it a day.
History from previous owner is questionable lol
Making political statements 26:10 even in your garage? I am a little bit disappointed.
It's my man cave, I'll put up any signs that I want haha
@@PineHollowAutoDiagnostics Sure thing. Just a little disappointed that you feel the need to do that.
@@adamturowski3765 if no one speaks up about anything, then you end up with tyranny. Would you be disappointed by that? 😅
@@PineHollowAutoDiagnostics Well, to me a garage is like a temple of engineering and technology, the place where real facts and logic matter above all. Also the place that brings people together in a pursuit of doing good things like building and repairing stuff. The politics is the antithesis of that as it is usually divisive, lacks logic and is based on emotions rather than facts. That is the source of my disappointment. But don't get me wrong, it is your man cave and it is up to you what you have there 🙂
Couldn't you check continuity of the suspected bad fan or apply power to it, to see if it runs ?
Sure. I did that with a test light which is a better test than an ohmmeter 😉
Uh-oh there is a part 2, will there be a third? Lol
That’s a confusing circuit
He said that he "swapped relays" ---- So to me, it sounds like he put that "normally closed" relay in the wrong place. Should be an easy fix by swapping the relays where they should go.... place your bets. lol
You would ASSUME that he put them back where they belong ! The fan is junk,Ivan “hot” wired it to no avail ! That motor is “ junk” ! Rad sensor & new fan,,,,,,you betcha lady,,,, it will work !
@@fredwalker839 Yeah. this was my guess before watching.... I've pealed those fans apart before and fixed them. It's usually just a bad connection where the wire is soldered to the coil/ winding on the inside. That winding's wire is so small that it can break with simple vibration, usually right at the solder joint. Very easy to fix most of the time..... Sometimes the entire winding will be charred and black--- and those are done for good.. She's cooked. lol
The wiring diagram doesn't seem to suggest that the two radiator fan switches vary by engine. I'm asking myself why they would engineer the system with two switches, and the only thing I can figure is for fail-safe purposes. For example, if the radiator cracked and there was no coolant in the radiator, that switch wouldn't activate because it wouldn't be in contact with the coolant. However, the secondary switch on the engine is in an aluminum engine part, which would be able to activate as the engine heats up, even without coolant contact. I may be interpreting the diagram wrong, but one switch appears to be a two-wire, and the other appears to be a single-wire case grounded unit. Also, take notice of the (#1) and (#2) notations on the two legs of the circuit.
Keep in mind that this system is such that "open" means the fans need to run. If both water temp switches are present, the fans would only run if both indicate an overheat condition - quite the opposite of fail-safe.
If you lost your coolant, the radiator fans would be quite useless 😅
@@russellhltn1396 Yes, now that I look at it again, I was overthinking the whole thing. This is quite an interesting system, and it was hard to view everything in the video. My sister had a '91 Camry, and the wire corroded at the radiator fan switch terminal, which kept the fan on all the time. It was an easy fix, but I was always intrigued how the open circuit caused the fan to stay on all the time. A lot of other systems seem to work on the opposite principle.
Amazing as Always Ivan!
Oh oh! The dreaded part deus. Will there be a part three?