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Cleaning Idle air control valve without removing it

ChrisFreeman

By ChrisFreeman,
in 90-95 WD21 Pathfinders

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ChrisFreeman NPORA Newbie

ChrisFreeman

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I have a 92 pathfinder and I have concluded that the idle air control valve is either clogged or the motor is not working properly. Is there any way I can clean the valve without removing it. It is in a recessed part of the engine and It seems hard to remove. Thank you

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  • 3 months later...
gv280z NPORA Old-Timer

gv280z

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Let me guess, your truck dies occasionally when you come to a stop, or it idles roughly around 300 rpm and blows black smoke, right? When mine did this, I also narrowed it down to the iacv, which I was able to remedy by having a 3 step Gunk fuel system treatment performed at my local kwik kar oil and lube station. What I really believe dealt the crushing blow was the 20 minute iv vacuum line drip with the engine running, they also put a bottle in the tank and spray cleaned the throttle body. After that it was fixed and never came back again.

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