Question about 2002 Jeep Grand Cherokee

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I have a 02 jeep grand cherokee limeted when i try to start it it will fire up then shut off i have to rev it to about 25 to 3ooo rpm for about 2 to 3min and thin it stay on some times it will shut off when you go to slow down and the rpm will drop and it shut of . when you try to start it sounds like battery is weak but just got a brand new red top optima with 900 cca please help me whit this problem thank you very much

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Have fuel pump pressure check also the idle speed control.sound like its idling low.

Posted on May 10, 2009

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It might be the fuel pump.

Posted on May 10, 2009

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1 Answer

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


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

Feb 12, 2013 | 2001 Jeep Grand Cherokee

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I have a 1995 jeep grand cherokee..v8.. runs good when slightly accelerating but when u try to accelerate under a load or to gain speed it acts like it dies and starts back.. like the rev limiter is at a...


Could be fuel or ignition.
If the coil or ignition is weak, you may not have enough power to fire the plugs under load.
And if the fuel pressure is low, you may not have enough fuel under load.

Dec 12, 2012 | Cars & Trucks

1 Answer

My 1994 Jeep grand cherokee starts n idles but then dies.


Engine stall or RPM fluctuates at idle.

This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control

Sep 18, 2012 | 1994 Jeep Grand Cherokee

2 Answers

High start up rpm on 2001 jeep grand cherokee


Most vehicles run at a high RPM for a couple minutes until they are warmed up, and then it should drop down to normal idle speed.

Mar 02, 2011 | 2001 Jeep Grand Cherokee

2 Answers

My grang cherokee2002 us spec, while driving trnz changes fine but when cick down or full excelrate and RPM reaches 4.5 or 5 engine is loosing power and getting noisy and RPM not going more, while gear on...


You are hitting the rev limiter top range, which cuts off your ignition.

I have a 2001 Grand Cherokee and the problem drives me crazy, but it is the way the car is designed- as soon as you hit the rev limit, it shuts down ignition and your jeep will "buck" - a real pain when you are trying to accelerate into traffic!

You have the 4.0L straight six engine, yes?

If so, please take my advice and learn to live with the minor annoyance of the rev limiter- that engine is IMHO the best Chrysler ever made (nearly "bulletproof"!) and it was so reliable you cannot even get it in a jeep now! For decades, that engine was used in welders, tractors, generators...and yes, jeeps... and it is a favorite among mechanics for its durability!

Feb 01, 2011 | 2002 Jeep Grand Cherokee

3 Answers

I have a 99 jeep grand cherokee ltd, 4.0 L, 6cyl, auto, 4wd, 87000 miles. My problem is that on the first start of the day and when the engine is cold, the transmission wont shift from 2nd to 3rd until...


I'd begin by having the trans fluid changed and making sure there isn't an excessive amount of debris in the pan (there is always some but should not be obviously a lot) You may have a slight varnish buildup inside that becomes less sticky as the internal temp rises.

Jul 16, 2009 | 1999 Jeep Grand Cherokee

1 Answer

2004 jeep grand cherokee idling problem. Revs motor 200 to 500 rpms higher while driving.


I had the exact same problem on my 04 GC. I put some Techron Concentrate Plus Fuel System Cleaner in from Wal-Mart and it seemed to fix the problems right away. Let me know.

May 31, 2009 | 2004 Jeep Grand Cherokee

1 Answer

02 Grand Cherokee High RPM start. Cuts out when driving


Ckean throttle plate inside throttle body...They tend to get dirtier than their counterparts in carbureted engines due to lack of fuel spray that kept them clean. If no luck with that, clean idle air control valve on TB. When doing this, don't turn the plunger, just clean with carb spray and replace. do not loose "o" ring seal.
Good luck

Mar 20, 2009 | 2002 Jeep Grand Cherokee

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