We go over how to replace the IAC valve and the symptoms we saw that prompted us to change it. I know in the last sputtering episode we said it was the sparkplug, well it was, this issue came on over a month later. If you have a problem with your IAC valve it will cause huge driveability issues to the point it could be hazardous.
Tools and parts:
Air Control Valve IAC Compatible Replacement For 1991-1997 Jeep and Dodge 2.5L L4 OHV Oem: https://amzn.to/3qJjKJ2
Compression Tester Kit (8 Piece Set): https://amzn.to/2IEEOji
Milwaukee 18-Volt Drill and Impact Driver Kit: https://amzn.to/2HfipZ5
268-Piece Husky Mechanics Tool Set: https://amzn.to/3kuGUzD
Bad Idle Air Control Valve Symptoms
Check Engine Light Comes On - This would a clear sign of an issue, too bad if you have a Jeep YJ there is no code for this issue.
Randomly Fluctuating Engine Idle Speed - For us, the jeep would rev to around 2,000 RPM and if you aren't expecting this, it could cause you to maybe tap the car in front of you.
Rougher Engine Idling - Since this does control your idle if rpm drops too low it would get rough. Funny that back in the day we would install cams that really made our idle seem rough.
Frequent Engine Stalls - While this probably won't affect you much on the highway because the motion of the car will keep the engine running if you have to stop, stalling sucks.
Fixing a Bad Idle Air Control Valve
You can try to clean your ICA valve. Carburetor cleaner seems like a perfect choice to break up the carbon build-up
Replace the IAC valve, for us, this was the solution. The build-up was so bad, it would have taken a lot of time to get the carbon off if it got it off at all.
Jump To Topics In Video
00:00 How To Replace IAC Valve Symptoms
01:40 How To Remove The IAC Valve
02:22 What Comes With The IAC Valve
02:49 How To Install A IAC Valve
04:12 Running Our Jeep After Replacing The IAC Valve
04:28 Thought Of The IAC Valve Install
05:59 Bloopers And OutTakes
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