Question about 1996 Jeep Grand Cherokee
It sounds like the idle air control valve (IAC) may be stuck with carbon build up. You can ether remove the IAC, or if your lazy like i am, buy two cans of Throttle body cleaner. Just follow the instruction on the can and pay attention to the IAC, try to spray the Throttle body cleaner hose towards the IAC. DO NOT USE CARB CLEANER, it's too corrosive to the gaskets used on throttle body's. If your going to remove the IAC, The idle air control valve is located on the back of the throttle body. It has an oval electrical connector and two torx screws holding it in. Unplug the connector, remove the two screws then lightly tap the body with a soft faced mallet to loosen it from the body. Once you have it out and prior to installing a new valve clean the seat inside the throttle body where the idle control fits. This must be very clean! Installation is in the reverse order. Btw, to save some cash, pull the valve out and clean it, this usually fixes the problem for quite a while. Look for crushed / cut, just any signs of damage to the wire harness to your IAC. After you have cleaned the IAC and still have the problem, you may have a bad IAC and needs to be replaced. Good luck and hope this helps.
Posted on Jun 21, 2009
It's nice that your starter is new, but your starter does not start the car...it turns the engine so it can start. So it has nothing to do with your problem...I would check for vacuum leaks at each and every vacuum hose. Then look at possible throttle position sensor and idle control valve./ valve passages. (there are electrical tests you can make on these and valve can be cleaned with carb cleaner, (carefully without turning internal plunger.)
Posted on Jun 21, 2009
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Posted on Jan 02, 2017
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