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99 Jeep Cherokee Stalling Need Help Please

by Shiningstar62280 / April 15, 2008 11:18 AM PDT

Hi I have a 99 Laredo 4.7 v8, I've had it for 6 months now and all of a sudden when I drive it the jeep keeps shutting down. When it stalls all the gauges drop to zero. The check engine light comes on, it says check gauges, and a key symbol pops up. Yesterday when I was driving it, it stalled again. When it idols for a long time it shuts down. I changed the fuel pump and the clutch fan, but its still happening. I got it diagnosed when it shut down and I'm not getting any codes. Its at the mechanic shop right now and they can't figure out whats wrong with it. Can you someone please help???

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When does the stall happen?
by run_va / April 16, 2008 3:49 AM PDT

Does it stall when you jam on the brakes or does it stall out while cruising? Any funky sounds you hear right before the stall could help diagnose it as well.

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Re:When does the stall happen
by Shiningstar62280 / April 16, 2008 5:20 AM PDT

At first it was when we came to a stop. Now its while we're driving. Do you have any idea what it could possibly be??

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1999 Jeep grand cherokee v6
by willd1777 / April 26, 2008 8:53 PM PDT

Im having the same stalling problem... I read forum about this problem on different year model may be the same.. google ... jeep grand cherokee stalling problem .. it will bring you back to this page another forum and it tell u to try and back out two screws that are two long..

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My 99 Jeep Grand Cherokee Keeps Stalling
by Shiningstar62280 / April 27, 2008 2:08 AM PDT

We found out what the problem is. One of the connections to the computer is no good. Each time we hit a bump, the connection losens causing the jeep to shut down. You might want to look into that with your jeep as well.

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99 Grand Cherokee Stalling Problem
by Mart-GCL / September 9, 2008 10:49 AM PDT

"We found out what the problem is. One of the connections to the computer is no good. Each time we hit a bump, the connection losens causing the jeep to shut down. You might want to look into that with your jeep as well."

I have a '99 GCL with the same problems :

Seems to be engine compartment heat related also. In cool weather - does not seem to be a problem.

Did this fix the problem permanently ? If so, how did you fix the bad PCM block problem ? Replace the PCM or the bad block ? How were you able to test the bad block problem ?

Thanks - Mart

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99 Jeep GC stalling
by jeepgirl333 / August 20, 2010 3:56 AM PDT

I have been following the advice of the gentleman with the 96 Jeep...Problem...I don't have two screw located under the black and gray connectors to the PCM in his JEEEP. Now what???!!! Please help.
~Lisa

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thesame
by desmon1466 / January 16, 2011 7:07 AM PST

pls Mr shiningstar62280 when u got an answer post to me too, my 1999 grand cherokee 4.7 v8 had thesame problem my email is desmondmuloryahoo.com

thanks

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