How to clean the idle air control (IAC) valve and throttle body in the Dodge Ram
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- čas přidán 27. 05. 2013
- This is a brief demonstration of how I dismantled and cleaned the throttle body and idle air control valve in a 5.9L 1998 Dodge Ram. This is an amateur effort, published for free but with no guarantees of safety or accuracy. Whenever you research a problem in your car, be sure to obtain information from multiple sources. Any misadventure you encounter if you decide to repair your vehicle is your responsibility.
Thunderclap sound used under Creative Commons 3.0 license, done by RHumphries at freesound.org/people/RHumphries/ - Auta a dopravní prostředky
Why can't all instructional videos be this good. Thank you for doing such a good job.
Thank you!
Exactly what I was going to write!
Still one of the best videos on how to remove and clean the Idle Air Control (IAC) Sensor and Throttle Body. I have a 5.2L 1999 Dodge Ram 1500, and it has a stuttering issue during acceleration, and idles roughly. Thanks to spelunkerd, I now have the testicular fortitude to attempt this operation. Excellent instruction on the finer details to be aware of when re-installing the components.
This is exactly what I needed to see. Thanks for the detailed comment.
Changed my failed Idle Control Valve on my 2001 Ram 1500 last night in less than 30 minutes thanks to this video. Being cold as a Yeti's outhouse up here in Wisconsin, I was very happy to have a running truck again in very short order. Had it been summer, I'd have done the entire throttle body, but I just changed the Valve. Thanks again.
I'm glad it worked out, thanks for the followup.
this guy has saved so many diy's money, God bless you man!
Excellent video and well done. I especially liked that you specified the bolt and torx sizes. I'm having trouble with my truck idle and feel more confident in cleaning the throttle body after watching your video. Well done.
Thanks, and good luck! If it's not an IAC problem, consider also the possibility of a vacuum leak, which can have a similar presentation.
Came to CZcams looking for this exact procedure. This video was perfect! Slow and descriptive & showing common mistakes. I'm off to replace my IAC, thanks so much!
I found your video a couple weeks ago. My '97 5.9L Dodge Ram would die when coming to a stop and making slow turns. Needless to say, my 4x4 truck steers like a tank with no PS. I did exactly as your video shows, including replacing the vacuum tube which was dried out and brittle. At 154,900 miles the throttle body had never been touched and was pretty dirty. My first test drive of about five miles round trip went well, with no dying of the engine at stops. I used throttle body cleaner which I don't think worked all that well, but after a lot of scrubbing with the fine wire brass brush and lots of Q-tips, I got it cleaned. Thanks for the very helpful video.
I'm glad it helped, thanks for the followup.
Like others have said, one of the better quality/more indepth repair videos available on CZcams. Subscribed and liked!
Thanks, man. Nice to meet you.
Dave
Man you are really good at explaining things very clearly and very thoughtful about your explanation of each functioning part
Excellent video! Thanks for the great work. This allowed me to complete a fully inspection and cleaning of the throttle body on my 98 Ram 1500 5.9L V8. The truck when from stalling out on most starts to running beautifully. Thanks!
I"m glad it helped, thanks for the feedback.
You did it again, my guy. Just the video I needed for just the problem I had. Many thanks, and much respect.
This video was very helpful since I am a novice with auto repair. I have planned to do an air filter replacement. The first time I removed the filter housing, I saw my dirty throttle body and figured I should get it all off the engine and clean it all at the same time, while I'm working on those parts. Seeing the process before I actually do it is very helpful. Thanks! Great teaching technique and explanations for your every action.
+Scott Jenkins Thanks, I hope it goes well for you.
One of the best video's I have seen. It was done with clarity.
Thanks, man!
@
I have a 1999 Dodge Ram I need a part for carburetor sensor,but in my car only shows one hole on the cover,air filter and carburetor.can you show me how to buy that particular part .
Need answers.
Your video was extremely helpful to me. At 5:56 seconds into the video, it hit like a ton a bricks. My 1999 Dodge Ram 1500 V6 did not have an air cleaner gasket since I can remember. I'm not a mechanic but out of necessity I've had to learn to save money on vehicle repairs. That little fix knocked out several error codes on my portable diagnostic computer. I could hear hissing as I was driving down the road and I knew I had a vacuum leak. After replacing it, no more hissing down the road like diesel engine with turbo. Man, my truck runs & sounds way better than before.
Now I'm down to one error code that I have left to track down on my truck. It's still an Evap System leak (PO 0455), but no more expensive sensor codes, that where so how related down stream, that would have been major bucks to replace. At less than $2 it was the best & easiest fix thus far!
So thank you kindly. Definite thumbs up...
+ebrown405 Thanks, man, I'm glad it helped. Actually I am a little surprised since (on this engine) the gasket on the intake side of the throttle butterfly valve is not as critical as other gasket surfaces beyond the valve. No doubt you found the issue. Cheers!
Thank you for this clear and informative video. My 1996 Dodge was dying every time I came to a stop. Followed this video to the letter and now my truck is running better than when I bought it.
Thanks for the feedback, I'm glad it helped. Dirty throttle body or dirty IAC pintle are not the only causes of shaky idle but the fix is easy and free. For others who stop by, also think of vacuum leak and occasionally a stuck open EGR valve. Typically fuel delivery and ignition problems are worse while driving, though not always.
If you haven't done the intake plenum repair I would highly recommend doing it as Matt Payne has done and remove the radiator and shroud allowing yourself to stand inside the engine compartment. I did not remove them and made it more difficult than need be. I too cleaned the throttle body and iac pintle. I have to look and see if I'm missing the gasket between throttle body and air box, I don't think it's there. Anyway, great series of videos, I enjoy your channel very much and find your videos helpful as I own a beat to death Dodge Ram that I wish you had previously owned rather than whoever actually had.
Thanks for all the useful info...I just replaced the TPS and the IAC. I only wish thst I had seen your vids first as I will be working on it again tomorrow.
Thanks for the detailed videos!! every step by step pocedure is awesome!
Your excellent video is one of the best I've ever seen!!! You saved me hours as I head out to replace my IAC!!
What a kind remark. Thanks!
Very clear and concise - Thank You for posting this! Will be looking for more of your videos!
Thanks, man.
Thank you very much for the response. I really like your thorough explanations with specific detail. I will pick up a fuel pressure gauge and perform the test and let you know how it works out. It would be great to have the issue corrected.
you are a knowledgeable man, most people don't tell me the screw head sizes but you did and that is fantastic thank you sir for all that you do :-) 2002 Dodge Ram sport 1500
Thanks, man!
excellent job. i was able to follow the steps easily as i had to do this. you explained both the how and the why which i very much appreciate
The best comments are those that stimulate imagination and curiosity. You've done just that for me today, I'll read about the stepper motor design and try to expand my knowledge base. Thanks!
Amazing video. Not quite what I needed, but I enjoy your method of approaching this. You speak very intelligently and it makes your videos much much much easier to follow than many on youtube.
Thanks!
Very self explanatory video, I hope this solves the jerking my truck has been doing, thanks
Good morning, Thank you for taking the time to post this video. I was "skeptic" of attempting this myself. After watching the video, cleared a spot in the garage, pulled the throttle body...put it back on, must say I feel good about it, truck runs better but still having an issue (next check plugs, wires, cap, etc)....sub'd to your channel as a way of saying thank you.
Thanks, nice to meet you.
Excellent video, good clarity and explanation of the procedure. Well done.
Thanks, brother!
I've found cleaning up gasket surfaces and removing remnants of old gasket material to be the most time consuming part of the plenum repair. Plan on $16 in o-rings if you remove the fuel rail and injectors. May find you have to replace rubber hoses as they may break when removed. I didn't buy the aluminum plenum pan or fel-pro gaskets, I'm gambling on the dorman gasket set being sufficient. thanks again for the excellent videos. I watch videos from the pros and yours because you are meticulous, and intelligent mechanic in your own right..
dirtmcgirt01 Thanks, man!
One of the best videos on auto repair I have seen. thanks
What a kind remark. Thank you.
Really really good detailed video step by step..Really appreciate your video..
I avoided spraying the bearing with carb cleaner because it might mix with and dilute lubricant inside the bearing, possibly causing more problems later. A big part of auto repair is to avoid causing secondary problems that come about as a result of your effort.
Thank you very good video imma do it myself but that get my self in more trouble every once in awhile videos like this come up and help me a lot
This 'How To' video was totally helpful. My 99 Ram blows black smoke, idles rough and all this was after i had a tuneup and the O2 sensor replaced.
Thanks for the followup. Black smoke is not likely from a dirty throttle body. Burning oil would be up there as a cause of black smoke, and poor idle suggests oil being drawn in the intake. This generation of Dodge has a design fault caused by dissimilar metals that make up the intake, and there is a plenum pan repair that has been done to many of these engines. To tell if your engine has had the classical "Hughes plenum pan repair", you could remove the throttle body and put a magnet down the hole. If the pan is magnetic steel, the pan is OEM, if nonmagnetic aluminum, the repair has been done once already. If burning black smoke it might be wise to do a compression test before committing money to a repair, since a bad engine would go against the idea that pan repair is worthwhile. Good luck!
love your videos, very good work and informative to boot. Thank you for posting
In response to the question posed by Joshua Pressley, I would evaluate the alternator and the battery before replacing the IAC, and I would certainly clean the IAC and throttle body before doing that. Check for codes and look for system voltage issues. When you press the window down button there is added strain on the alternator to keep up with increased demand if battery voltage is poor or if the alternator is failing. A lot of these systems are tied together and an issue with one system can seem to play havoc with other systems.
Very helpful and well informed video. Step by step instructions.
Thanks for the video. I have long since replaced the Plenum kit from Hughes Engines and have been very happy with the new plenum plate and gasket kits. However, I neglected to consider the cleaning and / or replacement of the sensors, which has caused me much grief from the engine stalling and not wanting to run on a consistent basis. I am now replacing all the sensors on the throttle body. I do have a habit of putting dialectic grease on my electrical connections, but very careful not to gob it in as this too will cause electrical problems.
Thank for the video. Great job.
You're welcome, thanks for the followup.
Enjoy the video very much I love the extra detail that you put in and the extra tips that should be known need to know on the extra your video was right to the point thank you very much for the extra tips and tricks and the things that you need to know and knowing how to do it
Smashing tutorial as allways mate :-)
Like your caution with the sensors, some people dont know how easy it it to damage the little buggers :-)
Your calm and precise tutorials are allways enjoyable :-)
thank u for being so detailed in sizes and positions. too many undetailed time consuming vids.
You will see that the one I have on presently is home made, cut from cork gasket material. But the replacement is paper and those gaskets are only about $4, not worth the effort to cut one out. The upper gasket is above the throttle butterfly, so a small leak there would probably not make much difference. I have found that they get damaged easily because of the fiddly way the filter box goes on. Thank you for watching! I hope to have the plenum fix done and posted in a couple of weeks.
Thanks for responding back, that makes sense. I replaced the upstream O2 sensor today. I hope it works -- on the scanner the sensor seems a little more responsive.
Great help. thanks for this video.Changing my TPS sensor fixed what my local mechanics couldn't figure out with the issue of the truck idling erratically and shutting off at stops, inclines and in reverse.
It's nice to hear followup with a practical example. thanks.
whats the tps sensor
@@waskilautarod2141 throttle position sensor
I just bought a 97 Dakota with the 5.2 this simplifies it very much I am adding a poweraid throttle body spacer to it and seeing this procedure helps a lot.
I'm glad it helped. These are classic trucks, I only wish mine didn't have so much rust on the doors. They don't make vehicles so durable now, few made today would survive for two decades.
great video - clear picture and great explanation of the work done - thanks !!
Thank you.
Great video. I used a Throttle Body Cleaner when I cleaned my throttle body on my 97 Dakota
thanks a lot man,,you have been explaining everything properly,,i have a dodge ram 99 too,,and it helps me watch your videos!
Clear, consice and professionally presented.
Thanks!
Hello Spelunkerd, you seem to be very knowledgeable in this area and have made a very good video on this matter. I have a 97 Dodge Ram Sport 1500, 5.2L 318 4X4. Wether it's after my engine has had a little time to cool down, or the first startup of the day, it cranks fast but takes a good 3 to 4 seconds for it to turn over and run. And after it starts it runs smooth and idle's steady around 800, mabye 900 rpms. Well that is part 1, part 2 of it is that sometimes while I'm driving it, it will hesitate for a few seconds, or at time's a few minute's and loses power like it's not getting gas, and a lot of times I can just stomp the gas pedal and it will clear up and run like it never happened, and my rpms would kind of fluctuate until it lines back out. ( It has nearly 300,000 miles on it, and I had the whole brand new fuel pump assembly put in about 9 month's ago) Do you have any suggestions to what might be going on with my Dodge, and what would you recommend? Excellent and thorough video, thank you!!
I think this is the absolute BEST DIY automotive video that I have ever seen and I have seen at least a 1,000. The video quality is excellent! The information is terrific. Supper Job!
What a kind remark!
Thank you.
Well, it is well deserved. I have now looked at dozens of your videos and they are of the highest quality with the best (most useful) information. So, my ''hat is off to you" and thank you!
The was a good presentation with excellent detailed explanations. I would preferably watch your videos with auto repair teaching.
thanks alot for the video and email advice-cleaning the throttle body solved alot of issues from very low idle almost stalling,weak power, and sticking.even being an advent seafoam user it still needed cleaning especially the vacuum port to the MAP .
+Angel Eder I'm glad it worked out, thanks for the followup.
Great video. I own a 1998 Dodge Ram as well. The 5.2 liter 318 cubic inch runs like a swiss watch. In my opinion there is no better motor than a dodge 318. I've owned several vehicles with 318 engines one that brings back memories is my old 1970 Duster, man she was fast.
Excellent teacher, exceptional video!!!
Thank you! 😃
Thanks for the feedback, and for the sub. When I can get to it I'll be doing a transfer case oil leak on my 1500.
Dave
Awesome video. My engine kept on shutting off and this seems to have solved the issue. Thanks
Great, thanks for recording your experience here.
Have a 98 Ram 5.2 almost 20 years, looks like same color too, yeah the air cleaner box has to sit on there perfect to work properly starting to rust a lot but still runs well..thanks for the videos.
Yeah, working on this engine can be hard on the back, because you always find yourself leaning over to reach for things that are just out of reach. Tall guys with lanky arms do better, ha ha. I wish I had a topside creeper to allow me to do that more comfortably, but those creepers are too big to commit space in my little garage. The great thing about this engine is the extra room inside the engine compartment. For example when I do the water pump I can take the rad right out and stand inside to bring the engine closer. Right now the big problem with this vehicle is rust, I've got big holes in the bottom of each door.
Excellent video. Thank you for your time
GREAT COMMENTS, thank you for sharing the knowledge very easy to understand the quality of the video is super, God bless
your a great mechanic and very thorough in explaining.👍
Thank you!
This video was awesome! I just cleaned mine and i can feel the different specially while is idling
Edson Navarro I'm glad it helped. Thank you for following up with your experience.
I just did this step by step on my 99 Dodge Ram 1500 5.9L 4x4 and my truck runs great now. The only thing I did different was replace the IAC sensor. Very easy!!
Thank you very much!!!!! The video was very helpful and fixed my problem.
2000 Dodge Ram 5.9 4x4 with 157,000 miles
I'm glad it helped, thanks for the feedback.
Thanks for the help. I just did this on my V10. Slightly different but same principle. Idles like a champ now.
That's great, thanks for the followup!
Hey, I have a 1998 Dodge Ram 2500....This video was very thorough and helpful. My truck has a slight rough idle mainly in the super cold weather of KY, when it's warming up with the heater on. I'm gonna give it a tune up first and move on to the sensors. Very helpful video please continue to post more videos on the 98 Dodge Ram. thanks
Thanks for the feedback, I'll do that.
In relation to wheels and tires for my Dodge 2500 1998, what does it mean when it says, 16x8 wheel, Rim 8x6.5 with a 10mm offset and a 130.00 hub bore?? Please be as detailed and specific as possible. thanks
Gen.xsprtsmn
16" overall diameter, 8" width of tire, fits 8" diameter rim, not sure about the others. There is a much more complete description of *tire code* in Wikipedia, which tells you everything you will need to know. To replace tires, I write down the sidewall code and take it to my tire retailer.
Look forward to more projects here. All other YT videos on this subject are novice like attempts. Thanks!
I found this video on goggle and it says "amateur video blah blah but is not amateur is well done and way easy to understand, thanks very nice of you to share, God bless
Thank you for the kind words.
I put the downstream sensor on an oscilloscope last week and it seems to be functioning normally. I also took both sensors off and bench tested them with propane.The downstream seems OK, though the upstream was a little sluggish. After I do the plenum fix I'm going to replace the upstream O2 sensor. Scannerdanner mentioned at one point that he had never seen a downstream sensor cause engine performance issues. I have had some idle problems, but the main issue for me is gas mileage Thanks!
Awesome video man. Appreciate it
Since I just put them directly back on without moving either the pintle of the IAC or the TPS, I didn't do a reset by removing and replacing the battery cable. I guess I could have done that, but It runs fine now and I'm going to have it all apart again in a week to do the Hughes plenum repair. Thanks for watching, Steve.
Good video!! It educated me on the three sensors around the throttle body! Free education is priceless. Thank You....
Earl
Thanks!
Thank You! Great Video. Watched it and Fixed my truck and subscribed. 96 Ram 2500
great video. I have to do this next weekend on my 2000 dodge ram 1500 5.9.
I’m doing this project right now. I even am using the same red shop rags to plug the hole that you did 🤣. Thank you for the video!
Man, nice video! very helpful
Cleaning the IAC sensor solved my pickup dying immediately after letting off the gas!!!! thank you!
This video is so informative, its awesome
Thanks!
this video helped a lot. thanks for the simple instructions
You're welcome, thanks for the followup.
Great vid... Glad to know I'm not the only one that has trouble with the air box
If I do it ten times in a row I get pretty good at it, but after a few months it's like starting all over again. It would help to be tall with a long reach! Thank you for watching, I still have the truck and still do videos occasionally. If you own a similar Ram, there's a Dodge Ram playlist on my channel you might find useful.
Dave
thank you, for this video. I need to clean my Throttlebody with IAC for my state inspection
Que sujeto tan agradable y profecional, gracias bien hecho señor saludos de Mexico!!.
Qué comentario tan amable. ¡Gracias y feliz año nuevo!
Excelente aporte amigo!! Saludos desde México!!
Gracias, my friend.
Great video. Very helpful.
Thank you!
Re bayman50cal. Just spray all the parts with carb cleaner, wipe off with a clean rag and remove all the grime. The IAC itself is a self-enclosed little motor, and you can't clean it other than to wipe down the pintle. However that pintle is where the dirt collects, possibly obstructing air flow through the small passage.
Getting ready to attack that job this weekend. Thanks for the tips.
In doing repairs on my 2001 Dodge Ram 1500 4 x 4 I've often used CZcams. Your video was very informative and I will be using it as a step by step as I try to resolve my trucks current issue of revving at idle, and the engine cutting out at low speeds (this is a new symptom). I will confess to being a 'Penny of the Big Bang Theory'. Meaning, put a smiley face sticker over the engine light on the dash and drive kind-of-a-gal. I've learned that is not smart though if I want to have a running truck. So, I've learned many things from simple to replacing the water pump, radiator, hoses, belts, brakes, calipers... & I still have my french manicure!
My one question is in the symptoms revving is not mentioned. I haven't had an engine light come up so I'm unsure of paying for a computer read. (I have to watch my pennies - which is why I resort to getting my hands dirty... plus it's fun knowing I did it myself!)
Should I get it checked or just go ahead with cleaning the TB, IAC... etc...
With a nonspecific collection of symptoms like that, and no access to a labscope, some mechanics recommend getting caught up on overdue maintenance items first. If you're lucky that will solve the problem without more effort. I don't remember what year Dodge scrapped the distributor, but if your Ram has a distributor, I would start with plugs, air filter, distributor cap and rotor, maybe wires. As you say, a clean of the throttle body would be reasonable and pretty easy. How to do all of that and more can be found in my playlist of Dodge videos. Good luck!
Very helpful...thanks for posting...God bless!
Just bought my 1999 Durango SLT 4X4 and it constantly would stall going into reverse and stop signs and lights. Removed and cleaned throttle body and replaced Idle Air Control Valve. Runs like a new truck... Power difference is incredible!! No more stalling, perfect idling.... Totally disagree with not using aftermarket parts though. Worked for Chrysler in the 90's and have NEVER had problems with non OEM parts
so i have a 98 ram 1500 5.2l . It is idleing low at about 500rpm. but it idles steady. the issue is when i apply the lightest amount of pressure to the gas pedal it drastically drops and almost dies. or it does die. it died 3 times yesterday. i got some fuel additive but this weekend plan to do exactly as this video
so i have a 98 ram 1500 5.2l . It is idleing low at about 500rpm. but it idles steady. the issue is when i apply the lightest amount of pressure to the gas pedal it drastically drops and almost dies. or it does die. it died 3 times yesterday. i got some fuel additive but this weekend plan to do exactly as this video
Dang, I seem to hear about that complaint a lot. Unfortunately many things can cause hesitation when accelerating, so it's not a symptom that points at only one cause. Of course the first thing one thinks of is poor fuel delivery, as when a fuel pump is going bad or the filter is clogged or when fuel is contaminated. It makes sense that an increase in demand might challenge a pump that is barely coping at idle. However a vacuum leak might cause the same issue, or a clogged air filter, or a dirty MAP sensor, or ignition problems such as misfires could cause the same complaint. Even a clogged cat could rarely present in a kind of similar way. It would be very unusual for this to be related to the IAC, because when the throttle butterfly opens, the IAC contribution is negligible. In old carburated engines (not your Ram), hesitation on acceleration was dealt with through design by adding a jet of fuel tied to a sudden opening of the throttle butterfly. In those cars you'd hear a squirt of fuel designed to match the gasp of fresh air. I suppose if such a jet were occluded it would present the same way. If it were my car I'd start by checking codes, inspecting the engine, and I'd look for other clues that might lead to the cause, such as a sucking sound that might be heard with a big vaccum leak. If I didn't find anything I'd check fuel pressure at the rail, look at live fuel trim, and check to see if normal maintenance items are up to date. In my Ram, I had similar issues that resolved when I finally replaced the distributor cap and plugs (overdue maintenance items). Please stop by and let us all know what was found.
Very good video!! Hope this is a good fix although I'm looking forward to you plenum mod!
Awesome video and we'll explained. Thanks
Very informative, thank you
thank you sir so much for this video I have watched a lot of your videos I have an 01 ram 1500 and I've been told there is no map sensor but at 1:25 you just proved that wrong
Yes, there is a MAP but no MAF sensor on this engine. Thanks for watching!
Nice job Dave! I noticed that the IAC had four wires going to it. I believe that the IAC is a stepper motor. You were referring to it as a solenoid. Good luck on your plenum leak repair. I never done a Dodge, but done quite a few GM products where the upper plenums and lower intakes were removed for leaks. They were pretty easy and I'm sure you'll be fine with your repair.
Awesome tutorial!
Thank you, I'm glad it helped.
Awesome video!!! Thank you!
Exactly what I was looking for 👍 I wanted to know what electrical connectors were. Thanks
Well detailed video. Thank you.
Thank you, I'm glad it helped.
Thanks for the reply Dave. Good info there.
Good informative video.