Question about 2005 Jeep Grand Cherokee

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2005 jeep grand cherokee, 5.7 hemi. engine has raced like crazy after start up 4 times. twice while in gear. third time dealer went in & re did something on throttle body. said all is back to where the specs call for. this happened again on sat. the13th while shopping. just started to back out of parking spot, & engine just reved like i had the pedal to the floor. jammed on break pedal & vehicle still moved in reverse for a few feet, until idle went back to normal. another few inched & a car behind me would have been hit pretty bad. called dealer today for another fix. my wife refuses to drive it. need help asap. dont want dealer jackin me around. jeep has extended warranty.

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2005 WK grand, USA<> right in USA>? gas engine sure.
all modern jeeps can do that. 1988 to now.. (exceptions dont apply here)
all vacuum leaks do that ,ever time..
and by any MEANS>
that means if the the ISC sticks open as is ALL SO COMMON
that is a vacuum leak. it sucks air the MAP sees that
an mixed fuel like magic, all on purpose and normal. for a
all map engines made (called speed density systems)
cracked vacuum hose (all of them or suspect)
all THINGS , on end of all those house must not leak air.
even the brake booster. must not leak,. see?
it can be simple as hose or , the end of hose device bad.
or ISC stuck.
ever lean the ISC?
idles speed controller ? gumming inside they all get.
from "EGR+PCV gas clouds of *****" i all them.
those two nasty forces make gunk and cause things to stick
its SMOG fumes there.

why do you need a stealership, ever heard of and ASE shop
google ASD shops by ZIP..
tell him you have a vacuum leak, he will find it
good shops have smoke machine to find them, takes skills to use.

one trick (have 10) is to pinch vacuum hoses or block them
RACE NOW? no , bingo.
finding some leaks are long hard hard work.
nature hates a vacuum so,, guess what in the end it finds a leak
and exploits it. (on earth not on the moon, max vacuum there)

Posted on Mar 30, 2017


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Posted on Jan 02, 2017

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SOURCE: 96 Jeep Cherokee stall then hard/no start

change fule filter if nothing changes do fule pressure test

Posted on Feb 11, 2009

  • 6982 Answers

SOURCE: 1993 Grand Cherokee AW4 transmission issue

have you tried a rolling shift? leave trans in drive and try moving 4x4 lever. it works on mine!

Posted on Mar 14, 2009

  • 2989 Answers

SOURCE: 1999 Grand Jeep Cherokee (limited) shuts off while driving

Starter...if the starter is old, it is getting heat soaked. Replace the solenoid.

Posted on Mar 17, 2009

  • 115 Answers

SOURCE: 2005 jeep grand cherokee limited 5.7 hemi vehicles hesitates

The egr valve is located on the front of the right cylinder head. It has a tube attached to it and going to the intake manifold.It has failed and is why your jeep is running rough and hesitating. Replace it and it will fix your driveabllity issues. Disconnect the battery for 2 min to clear the code.

Posted on Apr 02, 2009

  • 3 Answers

SOURCE: 1997 grand cherokee limited 4x4 v8

HI, It may seem obvious, but sometimes overlooked.... have you checked the oil level, as low oil can cause some strange things to happen! My 96 4 liter would be reluctant to move sometimes, but after I topped it up, it has been fine.

Posted on May 20, 2009

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