1 of 2 How to Diagnose stalling or shuttering Navigator, Aviator , 2004-2006 + Symptoms
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- Опубліковано 7 вер 2013
- How to fix a poor idling or low RPM stalling vehicle. 2004+ Lincoln Navigator How to. Parts listed below.
1-12-2021 This is a New comment, all this will help your performance, but sometimes I have found that the Mass Air Flow Sensor is the culprit with it shuttering or 1/2 second stalls.
Two videos - 2004-2006+ Lincoln 5.4 liter engine Navigator, Aviator. Replacing or cleaning the IAC or Automatic Idler Control will do the trick if your truck has 60-150K+ miles on it. This is a typical symptom of many cars that use an IAC Automatic Idler Control.
The second symptom is shuttering or a very quick drop of power while accelerating. The part that looks like it solved the issue is the Throttle position sensor located to the right of the full throttle body (modern carburetor). Both of these are perfect for the DYI'er.
The second issue of high speed and sometimes specific speeds erratic behavior. it one of a few items that could cause this issue, but this is the easiest to replace and most mechanics would replace this along with a few other parts like the MAPP sensor and the rpm sensor. Good luck
Replace this first - IAC Automatic Idler Control - Number on box CX-1857 (get the right one from the dealer, and get gasket kits for both items.
At some point in time 75-100k miles this can fail - Throttle Position Sensor - DY-967 / F4SZ-9B989 AA
---- More background on me and my solutions.-----------
Well, I read all the comments about this type of issue, and most mechanics will fix the problem by shot-gunning 3 or 4 expensive parts on your behalf, not taking the parts back that DID NOT cause the issue. I am not sure why Kevin is so hot on making what I am telling you wrong, cause its not and it is something you can do yourself, and save 3 days in the shop and $800 worth of parts you do not need. Most of the people who write negative comments are not mechanics you want to deal with anyway. Clearly, I know about cars but not as much as him, and that is why I am a DIY'er helping others with a direction away from the Shop. The process of repair is one of car experience and good general troubleshooting skill, knowledge, and although I try not to defend the negative comments, I just had to on this one. I have been working on cars on and off for 30 some years with very little error and shotgunning. , I am helped by having a solid degree in electronics, which is a very real component of today's auto troubleshooting. Sometimes I save money by opening a component and fixing a board, less of that in recent years. An average daily mechanic does not thirst to know which part actually died, and, unless you are an actual seasoned Ford mechanic and work on Navigators every day, and I value those guys you will be in the dark with specific issues. They know way more than us because they are experienced, and see repeat problems, but won't tell you its a repeat problem. They and other Dealer mechanics are also trained to get the job done fast, time is money, (your money) so it gets fixed, and that can be the shot-gun and sometimes the experience method, telling you they have seen it before and it happens all the time. (rare) All of the items that failed in my car are real and really happened, and before repairing them. I always do my homework and see what others have found on the web, or I will call my friend at Ford and most of the time they will tell you to,... Try this part, or try that because they are really not sure. We as DIY'ers , sometimes have time on our hands or multiple cars, to be able to take a more experienced approach and the replacement of these parts fixed my problem. I believe I did not say anywhere that this would fix all shuttering problems, this was very unusual and it took some time to come to the conclusion that it was a common issue. I also learned what the idler variable Throttle controller might have a bad spot on it, which would confuse the computer. There also is a vacuum hose at the back top of the rocker arm assembly that after 75k or so can become brittle and make the car act very erratic. P.S. I buy some of many parts on after market sites and stores, and although the AIC is like $120 bucks at the dealership, I know I will not have that same problem probably for the rest of the life of the car instead of buying a knockoff that may fail in 10k mi. As for the MAF part is a very critical part and I just do not buy knockoffs when it comes to that type of close tolerance item. Dealer was about $130. P.S. The video refers to the AIC, which is actually the IAC Automatic Idler Control. - Навчання та стиль
SIR YOU SAVE MY LIFE IM GOING SAVE MY COINS, AND DO THIS MYSELF AND BE CONFIDENT ABOUT IT YOUR LIKE A DAD TEACHING HIS SON ON A SATURDAY MORNING HOW TO BE RESPONSIBLE, I ENJOYED THIS AND THANKS .
thank you! used your video to fix the same issues on my Lincoln Navigator about 5k miles ago. I waited to post to make sure the issues were solved. It works/runs great!
low idle stall i cleaned it with q tips and carb cleaner like you said it is now working perfect thank you you have saved me a lot of grief
Just remember, they have a life span, and my experience is about 60k, so if it is that old, buy a new one and put it in in 5 minutes.
I'm having this problem and I already paid my mechanic and he cleaned out the area that you said that you cleaned out with carburetor cleaner and put a new air filter I drove off and it was fine came back and paid him when I got on the highway it broke again I'm guessing it's just peace that you're talkin about at least I hope anyway and if it does help me thank you so much this is very promising and if you hadn't posted this video I don't know how I would ever even go about fixing my truck God bless you
I don't know how people can give this video a thumbs down, it's a self help video to give others an idea where to start if your vehicle is showing similar symptoms. They are like,, damn it I drive a Chevy so no help here thumbs down.
chevys have their own problems
Luis Oyola - main problem with the chevys are the owners... they believe their shit don't stink... lol.
Did you have any obd codes come up before these repairs?
Just trying to fix an issue. I have no codes but on the downshift 3 to 2 gear it is ruff. Smooth as anything on upshift. Have had transmission fluid and filter changed and new computer update and relearn.
Wow, I like your intake much more than the one on my 99 F. The IAC on mine is inbetween the curve over of the fire wall and the very top of the engine.
Your videos help every time keep it up
Will this help a slow acceleration? Like not a spot slower then it’s supposed to
On the air intake what was the hose/pipe you removed? My lincoln navigator has the same. Hose/pipe and its broken and i am having a hard time finding one. Any help would be appreciated thank you.
Will this cause miss fires on different cylinders? Because i have a 2004 Lincoln Navigator and it is miss firing bad and wants to shut off at 2.5k and stall. i have replaced the battery,emissions sensor,camshaft sensor, and coil pack and sparkplug for cylinder8 because it was showing a constant misfire code for cylinder 8 now it’s showing multiple cylinder misfires
I'm thinking about getting a 2009 Lincoln Navigator what you think I didn't see any videos about a 09
Any chance u will ever do a spark plug change video ? ( 2004 aviator )
Hi Eric thanks a lot for the video!! I have an 03 Navigator and it just started having a rough idle, hestitation and shuttering under acceleration today. It always did stutter around 50mph unless I gave it more gas but other then that the Navigator always ran great until today.
This video just helped me locate the general problems without even getting to touch it yet. I will clean out the IAC, get a new throttle position sensor. Clean out my throttle body and Maf sensor and see if that fixes it.
I know my way around an engine but I have never worked on this engine so this video just helped me a lot. Going to clean the IAC tomorrow and throttle body but the throttle position sensor will have to wait until I get paid.
Boost Junkie what were your results?
Getting a random (at all speeds) shuttering while driving. 2005 Lincoln Navigator with 116k miles. Think this is the problem?
Hi Sir
My name is will I recently had a stroke and lost everything I had to move back home I'm 59 years old and have to start all over again and I'm in my mind me another vehicle I was already said to get me a Toyota 4Runner then I saw your video on a Lincoln Navigator have a little problem I could not see the model number of the intake air intake control and you never did say the throttle position module then have a gasket or will you put it back together it was to high up can you see what you was doing and one more thing we need to adjust throttle cable off it like broke something when you disconnected I'm not sure
My lincoln navigator 2004 has trouble starting up and wont stay running unless you keep on the gas and even then...you have to get it warmed up before itll start and then it wont run on it's own nearly at all and ya cant even put it in gear without it shuttering off. I have a guy going over the wiring to everything but not sure where to go from there.
sir this is when the rpm get bull back for a sec for little moments?
thanks
Just purchased a 03 navigator hopefully this work
How did it turn out? please share with us.
Will this work on a 03 navi??
It's really work
Thanks so much
Just an FYI for future use it's always a good idea to show before and after videos of it running rough (for viewer comparison to their own issue sense lots of things cause a rough idle vacuum leaks bad plugs bad coil packs etc) and then of it running properly after repairs are finished
Yes, you are correct and I welcome your knowledge.
I have an 05 Aviator....will this be the same process to fix? I cant find the AIC at Autozones website.
Sorry to write you so late, yeah right, 3 years later, maybe your reply can help others.
Would this work on my 98? It has a rough idle problem from time to time, a rough start, and it shutters after I give it a lot of gas.
TheAngelo854 did you fix yours? Mine doing the same thing right now.
I have a 2008 Lincoln Nav. The rpm gauge moves back and fourth when accelerated. The engine power has some slow down during this time. Do you think this could be the part they maybe causing it?
I would buy them both, and replace the AIC and if it does not help, replace the other. Return the one that makes no difference, but it will go bad at some time and they are usually good for 50-75k or so, and it won't be a problem anymore.
Awesome Thank you for your help!!
I started the same way, replacing sensors. In the end, it was easier/cheaper to replace the whole throttle body, since starting in 2006 all those sensors are contained as part of it. Hopefully it's fixed with playing the sensor game- but you may consider replacing the throttle body if replacing sensors doesn't help.
I would like to know what it causing the problem of my truck i have a 2004 navigator and the problem with my truck that it doesn't want to turn on i really don't know about truck but i would like to learn to i can find the way to fix it because I don't want to throw my truck away😞
I am not totally clear on what you mean by it won't turn on? If the engine actually turns over then, that is one state, but if it will not crank at all, you need to start there by looking at First the starter, then the starter solenoid or start mechanism. If your key is stuck and you cannot move the key to start, then look at your interlock system. hope that helps. e
I have been having issues with my 2005 Lincoln Navigator. When I accelerate it starts to shake noticed it going uphill and now it does it on a straight road. Was thinking it was the fuel filter and replaced it and same issue. Then I replaced the fuel pump module and same issue. I'm getting the right psi on fuel. Dont know what else to do. No check engine light.
My guy im having the same problem. Was told it was mt tranny. Had 2 different trannies put in and it did the same thing still. Waste of over 3 grand. Save your money dont go that route
@@sirfam601kc2 i actually got a check engine light for a few minutes enough to scan it. Ended up having a misfire in cylinder 7. Replaced the coil and spark plug and I'm back in business
my 04 navigator stalls out while accelerating it kind of jerk but continues to run , service engine came on today I go p0320 does your procedure help with that
easyaccess2 KD did you ever find the cause? Mine has been doing that for over a year and I don’t know why.
Kinda looks like the old engine mounted fuel pumps, minus the lever. My '09 NAV has a n intermittent knock. Usually if I'm.idlinbnor going slow but not all the time. Now that I know this is naf and can.damage my engine I will need to address the problem. I heard Ford used faulty spark plugs before 2010 so that is another thing I'll need to swap out. Thanks for this vid!
Hopefully you can help me so with my fuel rail pressure sensor unplugged the vehical runs great we allready replaced the sensor thinking it was the sensor when its plugged in it shutters and jolts worse at low speeds noise near back when it jolts we just replaced the fuel pump and module cause it wouldnt start but now this problem no one seems to have any ideas 2006 lincoln navigator
Try checking the air mass meter. I did not know that could affect that type of behavior and the only way you can troubleshoot it is to replace it and it is a cheap try when your running out of options. Under $70 bucks - www.1aauto.com/2003-04-ford-expedition-lincoln-navigator-mass-air-flow-sensor-with-housing/i/1aeaf00139?f=864928&y=2004&EAF&gclid=CjwKCAjwyo36BRAXEiwA24CwGXaY1clpvy3cJad-un_X7yNugQgluXtCDPntIHQkChQEa7eZYilBJxoCpq8QAvD_BwE
@@TheHumanSwissArmyKnife wouldnt that show on a scanner though i dont get any codes unless i unplug the sensor
@@TheHumanSwissArmyKnife mines a 2006 it says 2004?
@@TheHumanSwissArmyKnife also i noticed it seems to run ok in reverse lol
What were the Symptoms of your navigator why or how did you know that was the problem my navigator has been shutting off at stop lights or wanting to shut off
Sorry for the long long time to reply. Was it the AIC? Please share with others so we can help them. e
my Lincoln 04four side is working other side is not work
Eric, could you possibly post those part# ?......Thanks
Sorry i never did. Any dealer will give you the part number. There is only one AIC and MAF
I did replace both parts with new but still engine hesitating over 40mph please help me with any other steps need me to look into. Thank you
Akbar Tabatabai check plug #8
@@paulcarlton8368 What the heck is your deal with Plug#8? Because it is the hardest to get to, you try to tell people to replace it or what?!?! Is this your attempt at Humor ?!?!
Great
My 2004 Navi has a really rough idle almost like it wants to stall out but it runs will this help
Did you resolve your issue? AIC is the number 1 culprit. Please share your experience with us.
@@TheHumanSwissArmyKnife yup exactly the problem
misfires on these can be caused by a coil.. and many times won't set a code. another thing to clean is the MAF sensor
The wrench symbol is on the dashboard of my 2006 navigator!!! What does that mean????
means ya fucking stupid...
wrenches are used to work on cars......
your car is telling you it needs a wrench......AKA it needs to be fixed
@@kainhall that's not very nice
Been having some issues with mine (2006). Is it possible to email you what has been going on and what mechanics have done to TRY to resolve it? Thank you.@TheEpicAnalyst
This is so common, Navigators can be notorious for very unusual issues and some people have made great and helpful videos, to help others, or at least give them a direction. Let us know what was your issue and what did you finally find wrong. My guess is it caused you a small fortune.
My navigator be sputtering when I'm in park I'm goin to try this
Yes, especially when idling, suspect the AIC of it has not been replaced over 75k
@@TheHumanSwissArmyKnife Thank you
I have 2002 Lincoln navigator my hit no work l need to know how to fixed l need comment please??
I am sorry but I cannot understand what your specific symptoms you have,
I put on a new tps an IAC but still stall and is now pushing gas in my intake manifold
Do u need to adjust the tps and IAC
1-12-2021 This is a New comment, all this will help your performance, but sometimes I have found that the Mass Air Flow Sensor is the culprit with it shuttering or 1/2 second stalls.
I have a filter box on top of mine
So you had the same problems
Be advised that not all have this part. Mine has a throttle body as a whole... So I am looking at 200 to 400 for the part.... 5.4 lt 06 do not have a cable... just to let you people know this is not a fix-all for; for all Lincolns, 8l3z9e926c is the part from ford for mine. 2006 lincoln navigator limited edition. yes, they made a few of these....
Without hearing or seeing your Navi and my experience, this is symptomatic of your AIC. Do what I have instructed and I am betting on a solid fix.
e
I am not a mechanic and could not see down in the engine where you were unplugging wires, and also some of your shots were out of camera view. This seems more for a novice, not a girl who has never looked at an engine before.:-(
+Eric kirkhuff
Thanks a lot. I'll give it a shot to see what solves the issue. I Already cleaned the throttle body and MAS sensor; changed spark plugs, and cylinder number 8 coil and injector (including all o-rings from driver side when removing fuel line - no fuel leak).
I had a stalling problem and sometimes rough idling. I replaced the AIC and the throttle control sensor and my 2004 navi is purring like a kitten. I also got some throttle body cleaner and thoroughly cleaned the throttle body while I had it taken it. It was really nasty with a lot of built up deposits.
How about the location of the oxygen sensor ??my 2004 navigator rpm stays stuck between 1 and 2 i have to let the gas go and then punch it a little bit for it to react but it just jumps dont know whats the problem i change the coils and sparkplugs it help it for like 2 weeks but came back again it just so frustrating. .do you have an idea what could it be??
I changed my so far so good that's for the advice god bless u
I have a 2002 Lincoln Navigator 5.4 Liter, I notice when starting which is rough to crank up RPM hovers around 800 -1100 back and forth. Would replacing the AIC potentially fix that?
Hi Eric, I have a 2004 Lincoln Navigator we recently change the battery and alternator couple months ago everything was working fine until recently our air compressor went out and we where trying to see what’s going on we disconnected the battery and when we turn it back on it started to do this jerking while in park and while I’m at a stop sign so I have to accelerate it a bit to stop it. Would this be the problem?
No but it can. I have heard timing issues like it lost its mind but it has done that for years. Did your Navi go in for the head recall? If not, check into that also. Sounds like two different issues.
Look for physical things, belts, pulleys, etc.
Great video, will be posting my results as shuddering is really bad!
And I just don't trust any Mechanics, hopefully they'll start doing honest jobs after people choose to DIY
+Knine Zuniga What are the results?
How I fits a misfire cylinder 8 and a Lincoln aviator 05
Thank you so much
Did your navi make a wierd noise then the rmps went down
My Navi shakes or pulls really hard a few time when in idle at a red light or drive thru and goes back to regular. During this the headlights start to dim . It does this for 3 or 4 shakes or pulls most of the time at idle. It seems like its having breathing or something and just fixes itself by doingbthose hard pulls or shakes . The check engine light is not on. Is this solved with that AIC sensor you mentioned Eric? I need some help with this . Thank you .
Mine(2006), did that abd it was my alternator.
Eric Kirkhuff I have a 2004 Lincoln navigator and it makes a humming sound some time the truck will be turned off too and it still makes the sound. I also wanted to know where would I put the transmission fluid in at? Thank you Eric Kirkhuff
The noise that you are hearing is your airbag generatot.. its perfectly normal to hear that sound. The air generator is simply pumping air into the air shocks.
85timotheus thank you, I tell people my Lincoln's hungry. Lol 😭 so its okay then, good. 👍
But if its sitting low on the ground then you have a bad air bag
85timotheus Yes this a high probability
wrong...... there is a ride height sensor on each wheel... there could be a malfunction.... also there is a check valve attached to each air strut assembly that is a common failure... its a cheap part... people replace their air suspension for struts like a bunch of dumbasses.... if i wanted an expedition I would have bought one. lol
Hey Eric my navigator does the same thing .. But does this issues makes ur muffler sound funny? Are is it another issue
I wish I had hair like this guy.....seriously.
I have no codes, only when I get to certain speeds I get some shuddering. Does that need both the TPS and IAC or what?
Eric Slaton I have the same issue right now. Did you find the root of the problem causing the stutters with no codes?
Eric Kirkhuff
i rerplaced both parts motocraft and everything it ran great for few days but still has minor little misfires around 45mph. but changing the parts really reduced the severity of them... anyway i was just pulling in to a autozone yesterday and right when i slowed down to park , my 03 navigator started to idle very poorly. like a slow put put put put put, and it was shaking and everything ... turned it off to go inside and came back out and started it up and it was fine. im sure it will happen again in the future but i am wondering what causes my engine to idle poorly like that. even when i have the hood open and watch the engine with the 5.4l v8 lincoln cover off, i see the engine shake moderately ? any ideas? thanks
-Vince
What was your outcome, please share with us.
Vince plug 8
@@paulcarlton8368 What the heck is your deal with Plug#8? Because it is the hardest to get to, you try to tell people to replace it or what?!?! Is this your attempt at Humor ?!?!
What is the name of the parts
I have a 2000 Navigator, would these steps be the same?
Erek Cyr yes
I have a 03 Navigator and its making a humming noise when the car is coming to a stop then the noise will go away once we accelerate. What do you think this could be?
Likely your air compressor for your air ride ride system. I have an 04" and it sits on the right front behind headlight.
Im having a problem with my 05 navigator...lately i have been havimg a no crank
o start issue. Everything lites up on control panel but when u turn the key, nothing happens. When it does start it says Check advance track and now it says Check electronic throttle control?? I recently had a NEW motor inatalled, ever since then npthing but problems. I have been to SEVERAL shops but nobody can seem to find the problem! Oh and the check engine light is not on?? Weird huh??
What was your outcome, and I am sorry it took so long to reply. There are many things that are "interlocked" in the start process. Try the obvious one, the starter, then the shifter console.
Had the same thing on mine replaced the starter , fuel pump , new battery and it ended up being the key ignition problem and also had bad ground cables .... hope this helps
Another salesman posing as a helpful mechanic. I got my IAC valve motor from amazon for 29.00 and not any 120 and you surely don't buy anything at a dealership. Hesitation and stumbling idle is generally caused by air intake leaks in the intake assembly and that alters the MAF. And how do you figure replacing the MAF sensor as costing 3 or 400 dollars? Those are at parts stores for about 100 dollars
+Earl Guyton Hmmm Earl, I am not sure if your trying to help or just trying to flame my findings. I am not familiar with the Ford 2004 Navigator and Aviator Air Mass issues, but I am certain that what I found and what I did fix the issue.
I am a full fledged DIYer and yes, I sell also, but dont we all have something to sell? Have a great day.
Smart people will always buy OEM aftermarket , except for those gotcha dealer ONLY items that are marked up 1000%. What a scam we make lousy part then generate repeat sales by having a captive customer market.
my 2007lincoln navigator has a clicking sound in the engine area
So does mine. It clicks when I start it and sometimes when I'm driving around. I can hear it coming through the front ac vents in the center console.
actually its called the IAC. The Idle Air Control valve.
Partial dyslexia. The question is did it help you?
04 Lincoln Navigator suddenly shuts off. Been using some cheap premium gas
gas should not matter. i use regular, you are wasting your money with premium, so a premium is just a high quality regular. I do not think that is your problem.
Check your AIC, especially if it has over 60k miles on it.
RoDesha blackman its your fuel pump I put the wrong gas in mines and it wouldn't start for weeks... got a new fuel pump put in and it started right up
I am sorry that I have never had keypad issues, but others may and they are encouraged to comment.
sir this is when the rpm get bull back for a sec for little moments?
what?
All you have to do is just spraying clean them out I been working on Lincoln's for about 32 years when they though a code is went there no good
I have a whirling sound from engine compartment. NOT POWER STEERING, but sounds like that when PS fluid gets low and wheel being turned. No check engine lights or rough idle. Running just fine...for now. Any help would be appreciated. I have a 24 sec video -- ua-cam.com/video/6UsBO5aPWSA/v-deo.html.
i need my fixed
We believe in you!
Post your results after it is fixed. e
Hello Eric. My navigator at the drive thru or any idle time really just starts to wanting to die . Pulls or shakes very hard a few times and lights start to dim and after about 3 or 4 hard pulls or shakes goes back to regular and does it again. It stops in park. Is this the AICV as you mentioned ? Thank you .
Well, I read all the comments about this type of issue, and most mechanics will fix the problem by shot-gunning 3 or 4 expensive parts on your behalf, not taking the parts back that DID NOT cause the issue. I am not sure why Kevin is so hot on making what I am telling you wrong, cause its not and it is something you can do yourself, and save 3 days in the shop and $800 worth of parts you do not need. Most of the people who write negative comments are not mechanics you want to deal with anyway. Clearly, I know about cars but not as much as him, and that is why I am a DIY'er helping others with a direction away from the Shop.
The process of repair is one of car experience and good general troubleshooting skill, knowledge, and although I try not to defend the negative comments, I just had to on this one. I have been working on cars on and off for 30 some years with very little error and shotgunning. , I am helped by having a solid degree in electronics, which is a very real component of today's auto troubleshooting. Sometimes I save money by opening a component and fixing a board, less of that in recent years.
An average daily mechanic does not thirst to know which part actually died, and, unless you are an actual seasoned Ford mechanic and work on Navigators every day, and I value those guys you will be in the dark with specific issues. They know way more then us because they are experienced, and see repeat problems, but won't tell you its a repeat problem. They and other Dealer mechanics are also trained to get the job done fast, time is money, (your money) so it gets fixed, and that can be the shot-gun and sometimes the experience method, telling you they have seen it before and it happens all the time. (rare)
All of the items that failed in my car are real and really happened, and before repairing them. I always do my homework and see what others have found on the web, or I will call my friend at Ford and most of the time they will tell you to,... Try this part, or try that because they are really not sure. We as DIY'ers , sometimes have time on our hands or multiple cars, to be able to take a more experienced approach and the replacement of these parts fixed my problem. I believe I did not say anywhere that this would fix all shuttering problems, this was very unusual and it took some time to come to the conclusion that it was a common issue. I also learned what the idler variable Throttle controller might have a bad spot on it, which would confuse the computer. There also is a vacuum hose at the back top of the rocker arm assembly that after 75k or so can become brittle and make the car act very erratic.
P.S. I buy some of many parts on after market sites and stores, and although the AIC is like $120 bucks at the dealership, I know I will not have that same problem probably for the rest of the life of the car instead of buying a knockoff that may fail in 10k mi. As for the MAF part is a very critical part and I just do not buy knockoffs when it comes to that type of close tolleranced item. Dealer was about $130.
bro just stop..... you may have a degree in electronics but you are a noob at fixing cars... I can fix boards too and I just rebuilt the engine in my 04 navi with a nice .50mm overbore.... i also went in with my scan tool and updated all the modules and removed the damn noise when I dont have my seatbelt on. there is alot more to fixing cars than just being a mechanic... I am a technician....
Did my video help fix your vehicle?
Not yet! Strange...no real symptoms on my 2006 Navigator, other than the CEL. No sputtering, stalling, etc. Different manifold covering the throttle body, so I'm trying to find a video or diagram of how to get that removed, then hopefully the rest is as easy as you show here!
bummer, you have other symptoms that point to other solutions so its alot of detective work.
Eric Kirkhuff Yep! I will note that starting in 2006, where there aren't throttle cables, it's all computerized through the valve positioning sensor- the idle air control valve is connected directly to the throttle body, and it doesn't appear that normal auto parts stores carry it as a separate and replaceable part. I ended up just replacing the throttle body, which came with new sensors, and it immediately ran like a champ. Thanks for your video- it's really what got me into looking into doing it myself and realizing that I could! Even though I spent $180 on a throttle body, it could have been much much more expensive taking it to a dealership!
Eliott Reynolds fscxbbbh u hm g szzzzsssaffgg9pvxza
Exactly! You nailed it.
I believe its ( IAC )
oh my god.... please stop trying to help people when you dont know that the hell you are talking about. Trained technicians go to school and work on cars everyday. Firstly there an IAC is not an air intake control module... (wtf)... it is an Idle Air Control valve... all this does is adjust the air the engine gets when the throttle plates are closed ... at idle. also that is not a solenoid it is a stepper motor that is controlled by the PCM (Powertrain Control Module).... and you can hook up a good scanner and see the IAC counts ... from 1-255.... decel stalling and shuddering could be caused by a faulty MAF (Mass Air Flow) sensor.... also 04-06 navigators have different engine.. 98-04 have a 5.4L 32v (4v per cylinder) and 05-onwards have a 5.4L 24v (3v per cylinder) these have different intakes manifolds,exhaust manifolds,heads, and a boat load of other differences. I respect that you are a do it yourself-er... but dont post videos talking about shit you dont know anything about because you are spreading misinformation to other people that are trying to fix their stuff on the cheap... we have a saying in the shop.. save $1 here spend $100 later because they didn't want to fix it right the first time.