Question about 2001 Jeep Grand Cherokee

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Grand CherokeeTransmission needs high engine revs to work

My 2001 Grand Cherokee WJ automatic will not start going up through the gears until engine revs are at 3500/4000 rpm after that she is fine and will cruise for hours at say 70 mph with no problems. The Engine management light came on so I took it to my Jeep dealer who has not yet told me the fault code (could only speak to non technical receptionists) but says I need a new gearbox. When I disputed this over the phone and said I thought that it was just the input and/or output speed sensors on the transmission I was told that although there is only a minor fault in the gearbox; it cannot be accessed and thus I have to have a new gearbox. Has anyone heard of this extreme remedy for what appears to be a minor problem. Thanks for any help

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Sounds like the trans is slipping check fluid level and see if it smells burnt and is brown in color. should be a bright red if its ok. its alot more than a minor problem

Posted on Dec 09, 2008

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2001 Jeep Grand Cherokee- Larado owners manual


2001 Grand Cherokee its under WJ series that run from 1999 at 2004; check in this link to download: jeep-wj-owners-manual-pdf.

Hope this helps (remember to rate and comment this answer).

May 09, 2011 | 2001 Jeep Grand Cherokee

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Just purchased Jeep Grand Cherokee LTD TD 2001, looking for the handbook please?


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Click in this link to download free 2004 Jeep Grand Cherokee WJ Owner's Manual.pdf (344 pages pdf file, 6.1 MB).

Hope helps (remember to rate this answer).

Apr 03, 2011 | 2001 Jeep Grand Cherokee

1 Answer

What is firing order


Depend what Engine Model you have:
2001 - 2004 (WG) Grand Cherokee (International Markets)
1999 - 2004 (WJ) Grand Cherokee (All Markets)
WJ engine Specifications
4.0L I-6 1-5-3-6-2-4
4.7L V8 1-8-4-3-6-5-7-2
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My 2001 Grand Cherokee Revs 2500-3000 Rmp when I first start it any Ideas why


There is a plastic vacuum pipe which goes from the top of the engine to a solenoid behind the air filter.mine kept popping off due to no clamps holding it at each end( this being a 2002 limited v8) and the revs would go high when started.I bent the bracket on the solenoid so ther was less space between the two and its been fine.Also a pump or two on the gas pedal before starting lessens the revving.Hope this helps.davodown.

May 03, 2010 | 2001 Jeep Grand Cherokee

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Where is the engine number on 2001 grand cherokee?


Cherokee, Grand Cherokee, 1999-2005

Engine Identification

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Facing the front of the engine, the engine serial number is located on the side of the engine block on your right. (The engine's left front side.)

Also, here can find all sections about the Jeep WJ Service and Repair Manual.

Hope helped with this (remember rated this help) Good luck.

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I have a 2001 Jeep Grand Cherokee Limited All Wheel Drive V-8 that revs high when starting whether the engine is cold or warm. It was suggested it may be the Idle Speed Air Control Motor. How easy can...


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Needs new radiator, can you put a 2000 radiator in a 2004 jeep grand cherokee


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2 Answers

Grand CherokeeTransmission needs high engine revs to work


Hi Ghecham,
I have done some research and it sounds more like the torque convertor may be the problem,As the speed sensor would affect the whole speed range and not just the range under 3500rpm's
I will continue to check on other possible causes while you are having the other parts replaced.

Thanks again

Jan 20, 2009 | 2001 Jeep Grand Cherokee

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