Question about 2001 Jeep Grand Cherokee

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Jeep Grand Cherokee shuts off at idle while stopped. RPM fluctuates then engine eventually dies.

2001 Jeep Grand Cherokee shuts off at idle while stopped. RPM fluctuate\ up and down between 400-700 then engine eventually dies. It started 8 weeks ago...then mysteriously began working properly again. Now its back to doing what i described above - what could be wrong?

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  • 76 Answers

Your idle air control valve is going out located behind the throttle body.

Posted on Feb 13, 2013

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Posted on Jan 02, 2017

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Anonymous

  • 35 Answers

SOURCE: 2004 Grand Cherokee: oil pressure fluctuates

if you know for certain that the sending unit is correct and the guage is accurate, then yiu may have big problems.....while the engine is running open the oil filler hole.. is everything wet with oil? or does it look dry or just a little lubed? you can allways install an aftermarket oil pressure guage(crappy tire) if you get the same results with that then you may have a week oil pump....worst case scenerio... need an engine rebuild as the moter may have wear issues.does the pressure slowly drop as the motor warms up? at idle ? does it jump up when you step on the gas?

Posted on Mar 30, 2009

downhille

  • 400 Answers

SOURCE: oil gauge fluctuates back and forth. sometimes

You'll need to determine if the oil pressure is actually changing, or if the sending unit or gauge is lying to you. Be certain the oil level is up to normal, then check the actual oil pressure with a test gauge. If the pressure varies (drops) at engine idle, perhaps your pressure bypass is defective, or perhaps the oil pump is worn. Testing with a known good pressure gauge should lead you in the right direction.

Posted on Oct 24, 2009

Mike Phillippi

  • 434 Answers

SOURCE: Describe your 1997 Jeep Wrangler 1997 jeep

The check gauges light is normal because at 400 rpm it isn't running fast enough to build sufficient oil pressure. I am guessing maybe a vaccum leak???

Posted on Jul 10, 2009

Anonymous

  • 43 Answers

SOURCE: Very rough idle on 2002 Jeep Grand Cherokee Limited Edition V8

If you haven't changed the plugs or had the fuel system cleaned, now would be a good time to do it. The number 1 culprit for rough idles is dirty injectors or plugs. You can try an injector cleaner in a can (or bottle) for under $10 and see if it helps, and then work from there. If there isn't any improvement then if you are able to, check the plugs for any gunky buildup and if you find a bad plug, make sure you replace them all (or have them replaced) at the same time.

Posted on Aug 03, 2009

Anonymous

  • 117 Answers

SOURCE: 1997 jeep grand cherokee. low idle 500 rpm, runs

Most of the time an engine is supposed to idle at 5-600 RPM in Driveif it's not you can up the idle. But you also may have a vaccume leak.

Posted on Dec 21, 2009

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