SYMPTOMS OF A BAD IDLE AIR CONTROL VALVE

In this video, you will learn 4 symptoms of a bad idle air control valve. Watching this video will help you diagnose to see if it is time to replace your idle air control valve. You will also learn how an idle air control valve works. This video also teaches you where the idle air control valve is located. You might be experiencing a check engine light, idle too high or too low, engine stall during idle, and a crank but no start. Some of the engine codes you might retrieve are P0505, P0506, P0507, P0508, P0509.
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My Favorite Car Repair Manual:
(Use code AD10VA for 15% off one-year subscriptions for any US Order)




Here are some of my favorite items that you might like:

[willsrestorations]

And yet 99% of people who change their air control valve never do it properly. You must you must disconnect the battery before replacing the air control valve this is so that it will relearn the new control valve when you install and reconnect the battery you must allow the vehicle to idle for at least 10 minutes without touching the gas or disrupting anything and then do another 5 minutes with your foot on the brake and then another 5 minutes with your lights on air conditioning on rear defroster on so that it creates a load and this will help the ECU learn all those different variables to give you a perfect idle when you are done. Hope this helped because nobody on YouTube is showing this because they're all defective

[sc]

how much more straight to the point and clear can you get? great content. I hope this kid gets more subs. I hate people that waste time. respect to him.

[CrackerFL]

Thanks! My car is doing just that. No codes, but just cleaned the throttle body and it was very dirty. 147, 000 miles dirty. New replacement costs under $50!

[nelsonward]

Great video and as a mechanic I can say the info is spot on.

[r.a.murillo]

FINALLY....I've had the "howling" sound for 'bout 8 months on a 1997 4x4 Ranger 4ltr v6. IAC....hmmm....who would've thought. I'll try to replace it myself or go to the local small garage mechanic (I support local businesses). Yup...truck is 26yrs old with 157k on it. Always starts...and has never left me stranded. I even drove to California from central FL last year at the height of gas prices ! I need a interior dome light cover and a fan speed modulator. And I can't find the very slow leak on the ac.

[polynomial]

Excellent overview of the IAC with good information. Thank you!

[kaka]

I found what the idle control valve is from my truck not being able to stop hard without the rev control launching me forward while on the brakes

[gameguy]

Urg I just replaced mine 8 months ago and I'm having these problems again. Im glad I watched this video. Im Off to the auto parts store for a new one!! Lol

[mrmanautomotive]

Great Video! I like your editing style, very clear and concise.

[JasonDziukACE]

Can a faulty IAC also cause your RPMs to suddenly kick up while sitting in idle, such as while waiting at a red light?

[JohnnyTrulove]

It has been happening to my car. Cold start crank, runs, then immediately shuts off. Have to start, give it gas to about 2k rpm for a few seconds and sometimes stalls again. Will order the oem part. '00 4Runner.

[Nightcrawler__]

K so as a seasoned mechanic... You do not need to take the battery cables off unless it's a foreign vehicle like the one used in the video. My Ford Crown Vic also has an IAC valve that sounds like a boat horn. It's the plastic tube making that noise so I changed it over to metal and solved all my problems. Same with my air intake. I changed it over to a metal less restriction pipe and got 10hp out of it plus another 10 from muffler delete.

[BEINGOOD]

A great day... it's 15 degrees and windy today. I've had my Jeep towed home twice from work. Going into the second month, paying for a ride to work everyday.

This part came to 64 dollars. It's an easy install, . uncertain about driving it being stranded again.
So I'm being Cautious. See how it goes after new valve is in.

[ACommenterOnYouTube]

My uncle's Tuscon on a cold start will fire right up but then the idle is really low like below 600 rpm for about a second or 2 as it appears to want to stall out, then ramps up to 1400 rpm during its cold start process then slowly drops to 800 rpm as it warms up.

[froglobster]

2019 F150 V8 same, not really rough idle but sporadic rev up and down by 50-100 rpm, and occasional stall. Highway miles only 25k. Warranty. Ford diagnosis ( going in today) 3 of 8 lower bank fuel injectors drip. All 8 upper injectors perfect. Lower bank injectors have 1000 psi blasting through while uppers only have 60.
Ford said this will fix the issue.

[chadhoback]

After market MSD coil pack harness (MSD part# 88867) will also behave erratic like a IAC going bad as well.

[BluePhoenix]

i like the way he talks lol so Chill 😂

[anthonyjanelle]

Lately my car stalls when the clutch is engaged … especially when driving … my idle when stationary is actually good 800ish rpm’s smoothly

[rrbass]

This is exactly what's going on with my 18 mustang GT I think it's closed or closed because when I get to a stoplight it idles real low and it stalls I have to restart the car in either put it in part or neutral or keep tapping the gas for it to not cut off