Question about Jeep Grand Cherokee

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I have a 96 Grand cherokee with a 5.2. I have replaced the iac twice. each time it has remedied the problem with the stalling at stops at idle Then it returns after a few days. why?

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  • Jeff Turcotte
    Jeff Turcotte Apr 09, 2011

    does your engine light come on? if yes, do you have the trouble code?

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  • 165 Answers

U should have ur throttle plate in ur throlle body checked for black thick soot,all over the plate n housing. if so needs to b wiped clean with a rag, toothbrush an carb cleaner to remove black film covering plate an hsg.very common probem with stalling at lights. if ur chek engine light is off its a mechanical problem,if light on then electrical sensor issue. to access plate u need to remove air intake hose at top middle of engine.(where the carburetor used to sit)in betwwen engine an air filter housing. good luck, u can visually see if plate is dirty after removal of air intake hose, b sure to open plate wen cleaning to clean over an under the actual plate

Posted on Apr 09, 2011

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1996 jeep cherokee stalls, I've replaced the throttle position sensor, MAP sensor, and carbeurotor. What else could it be?


You replace sparkplugs,plug wire,tps,map,cap and rotor.Thats good,If the vehicle runs and you come to a stop and it stalls,That is the IAC (Idle air control) you say it ran fine for a week now its acting up, Service the IAC or get it replaced.

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My 1999 jeep cherokee turn off when i make a stop or in the red lights pease help


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clean the IAC it is all you need to do. Battery voltage drops just because when the engine stalls it kills the alternator. Engine stalls beause the Idle Air Control (IAC) valve is dirt clogged. Uninstall the IAC valve, and clean it using electronic contact cleaner (3M will do). No need to spend anything else.

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FORD: 1995-96 CONTOUR, CROWN VICTORIA, ESCORT, TAURUS, THUNDERBIRD
1996 MUSTANG LINCOLN-MERCURY: 1995-96 CONTINENTAL, COUGAR, GRAND MARQUIS, MARK VIII, MYSTIQUE, SABLE, TOWN CAR, TRACER LIGHT TRUCK: 1995-96 AEROSTAR, BRONCO, ECONOLINE, F-150-350 SERIES, RANGER, WINDSTAR
1996 EXPLORER This TSB article is being republished in its entirety to include the 1995 4.6L Thunderbird/Cougar. ISSUE: After a 1-4 hour engine soak time, long crank times and/or long crank to start followed by a stall may occur on some vehicles. No further stalling or rough idle will occur after the engine is running. The long crank and/or stall may be due to the Idle Air Control (IAC) Valve sticking.
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SERVICE PROCEDURE
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2 Answers

IAC Valve Location - 1996 Jeep Grand Cherokee


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. 
 To save some cash, pull the valve out and clean it with throttle body cleaner, this usually fixes the problem for quite a while.
Good luck and hope this helps.

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2 Answers

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try replacing the idle air control motor or IAC for short. i actually had one at work today with your same complaint. and sure enough the valve was a carboned up and wouldnt work properly. and its nearly impossible to clean to the point where it will work properly. cost for the part at a dealer is about $115.

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1 Answer

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