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i have a 1995 dodge dakota slt extended can 5.2L 2 wheel drive my idle air control valve keeps messing up i bought 1 from kregans about 5 months ago and about every month i have to tak it back and get another 1 it keeps messing up/going bad and bought on from autozone to and samething kregans im getting barg and warner and autozone got a duralast but they keep going out why would that be im puzzled.....
Although tons of new IAC are bad, I doubt your problem is constantly bad IAC's. I bet you may have a wiring problem or something else is causing idle problem. Like the notorious intake plenum or a bad EGR or a bad vacuum leak.
i did replace the plenium gasket egr i havent yet and vacume leak not sure but when i have the ac or heater on and i drive and have to put the gas peddle down the heater/ac goes fron the dash vents to the floor vent and i have it set to the dash vent could that be a vacum leak.?
The manual is not specific on a number. But 10 is minimal, IIRC the typical engine is 20.
Also it is not PSI, PSI is for pressure not vacuum. Vacuum is inch of mercury or something like that, I don't know it all. LOL