Question about 2001 Jeep Grand Cherokee

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Jeep xj revs at idol - 2001 Jeep Grand Cherokee

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Likely a bad throttle position sensor

Posted on Sep 16, 2009

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Sounds like the Idle air control valve try that first or the throttle sticking.....

Posted on Jun 05, 2009


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1 Answer

Is there a access panel on a 1998 jeep grand Cherokee for the fuel pump it has a 5.9 liter engine

USA jeep, ZJ. grand.
NO. (only Liberties later)
the filter was moved to inside tank in 2005
so when fuel pressure is low, Is it?
the filter outside tank is #1 service.

the rule of filters is here.
the 02 liberty had a hatch..
see filter rules, and covers pump. too.

click fuel system.
here, ZJ grand

chapter 14, fuel
page 20 is tank, in fact its all there, and 100% FREE,
no engine stated, and fuel system is not the same.
page 17 cover pump, in tank.


Jun 18, 2016 | Jeep Cars & Trucks

1 Answer

How to remove the rev limiter in a 1998 jeep cherokee sport

No engine option stated, nor country. XJ hacking topic.
the ECU does have that. there are 2 on all newer cars.
1 normal limit (higher)
2: limphome limit. (lower)

both are hard coded in the PCM , firmware.
so your question really is who to program your PCM.
and that has infininty anwsers, Google it.
there are 2.
a: a PCM hacking tool. (find it)
b: or custom ECU. (I have a car with it ,. made by me)

im not expert on hacking tools, but there are many, and changes every day , from now forward.
i do have my 08 hacked, but not for rev. id never over-rive my stock engine, that be crazy. why do you wont to over-rev./
if serious why not join a real forum on your car and post this there
or better search there.

here is my first google hit.

Aug 10, 2013 | 1998 Jeep Cherokee

1 Answer

I need a free fuse box diagram now!

Rev iew the electrical diagrams and more details in the Jeep XJ Service Manual (page 3 and next)

Hope helped (remember rated this help) Good luck.

Nov 18, 2009 | 1998 Jeep Cherokee

1 Answer

01 xj jeep revs up at idol

That is completely normal for your jeep product idol ranges it does this while warming up it should drop back to 800 when completely warm or when you put it in drive and everything is a go try using a better spark plug from AC DELCO lifetime warranty ones that'll keep some of the heat under control and abnormalities in your jeep product don't forget to change your timing belt at correct interval if not sure when that is call your local dealer and ask the service dept at how many miles should you bring in for timing belt change but of course you can change the belt your self with a little determination and knowledge. wutxtye0rjd9d9ekmodqt1eoxkvn9hr9qjz1l3dabggyud7sdgr36czsrfxqenadhnijx9nfayi+sz1sug0aaaaasuvork5cyii=

Apr 22, 2009 | 2001 Jeep Grand Cherokee

1 Answer

Engine turns off when idol

switch to shell gasoline this will increase horse power which will force any water out of the gas or oil system next check battery and alternator at local autozone free these two are top problems .with this situation/

Apr 05, 2009 | 2002 Jeep Wrangler

1 Answer

1988 jeep wrangler idoling rough

It does sound like a vacuum leak. Get a can of WD-40 and start spraying around the carb. It will rev up, and U can pin point the loose vacuum hose, are crack vacuum hose.

Feb 13, 2009 | 1988 Jeep Wrangler

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