Last post on Dec 04, 2013 at 9:29 AM
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Jeep Grand Cherokee
#840 of 1238 Re: 2000 Jeep Grand Cherokee Stalling [nitro850]
May 07, 2011 (2:08 am)
about the stalling. i had this same problem. cleaned the throttle body, changed out a few sensors like the throttle positon sensor, map sensor, but what fixed it was changing the pcu or ecu (power or engine control unit) passenger side fire wall behind the radiator resevoir. got it of ebay for $185. sent them my vin nbr., part, nbr, and mileage which they programed into the new one. very easy to repplace. pull resevoir, unplug 3 terminals and unscrew about 4 screws. swap it out and it fired right up and did not stall again. mine stalled at stop signs and would hesitate just a second at high speeds on the expressway like it missed a beat or hesitated for a second.
..... good luck
#841 of 1238 Idle/timing issue
May 25, 2011 (1:40 pm)
Own/drive a 94 GJC w/V8, 5.7 liter engine, w/120k miles. Fuel pump died. Had it replaced, along with the external fuel filter. Also had the throttle body plate and intake injection system cleaned. Since that work was done (but never before), it sounds as if it is 'missing', esp. at idle. Idle RPM is 1k or under. Not shaking/not loud but does make a rather funky sound (not sure how to describe). Any thoughts on why this work would cause this reaction? The mechanic thinks that the computer sometimes takes some time to adjust or reprogram and that (me) driving it is the best way to help it along. I am concerned and want to be prepared. Advice?
#842 of 1238 Re: 94 Jeep Grand Cherokee 5.2 Starts, Stalls [94grandcher]
May 25, 2011 (2:01 pm)
For 94grandcher: I just replaced the Fuel Pump and External Filter in my 94 JGC because of similar symptoms. I was able to diagnose my fuel pump issue by reaching under the fuel tank and gently thumping the bottom center of the tank with a rubber mallet. The Fuel Pump is housed inside the the tank so tapping on the tank helps to unstick the points in the Pump. My Jeep started after this crafty maneuver (and continued to run). Then, got it to my mechanic who replaced the necessary parts. Best wishes.
#843 of 1238 1999 JEEP GRAND CHEROKEE 4.0 V-6 WON'T START.
Jun 02, 2011 (5:59 am)
WENT TO START IT ONE MORNING (NIGHT BEFORE RUNNING FINE WITH NO PROBLEMS) AND IT ACTED AND SOUNDED LIKE IT WAS GOING TO START BUT IT WOULDN'T FULLY START. EVERYTHING "SOUNDS" LIKE IT IS GOING TO START, JUST WILL NOT TURN OVER.
TO ME.. HERE IS THE KEY THING *** NONE OF THE GAUGES WILL MOVE WHEN THE KEY IS TURNED ON *** THE LIGHTS, RADIO, EVERYTHING ELSE LOOKS AND SOUNDS FINE. (HAD 3/4 TANK OF GAS WHEN I PARKED IT THE NIGHT BEFORE) I CHECKED THE FUSES AND THEY SEEMED FINE, UNHOOKED THE BATTERY AND HOOKED IT BACK UP AND STILL THE SAMETHING. I AM AT A LOSS. PLEASE HELP. IF I LEFT ANYTHING OUT PLEASE ASK!
#844 of 1238 Re: 1999 JEEP GRAND CHEROKEE 4.0 V-6 WON'T START. [jeeplover99]
Jun 10, 2011 (7:00 pm)
I would look into replacing the ECM (Engine Control Module). Look on E-bay for one. Locate on the passenger side on the firewall.
#845 of 1238 2002 Jeep Grand Cherokee laredo problems
Jun 16, 2011 (3:08 pm)
I have been having problems with my oil pressure gauge pretty much since I got it about 8 months ago. It is normal when I first start my jeep but as soon as I drive a little bit it drops down to nothing & my check gauges light comes on. It has gotten worse recently so I changed the oil. No better. It's not stalling or anything like that the pressure just bothers me & I have no idea what it could be. I also am having problems with it hesitating to pull out once I am stopped. Any ideas or suggestions??
#846 of 1238 Re: 2002 Jeep Grand Cherokee laredo problems [jennbiller05]
Jun 16, 2011 (5:17 pm)
very likely your oil sending unit... just replaced mine, it would go to nothing or just float around sometimes. on my 2000 gc it was located just above the oil filter. about $42 at autozone....very easy to replace.. just unplug the wire lead and unscrew. replace new one.. but do not overtighten...... count how many turns to take it off... and use that many to put it back on... good luck... alan
Jul 04, 2011 (2:52 pm)
I HAVE HAD NO PROBLEMS WITH MY JEEP BUT THE OTHER DAY THE AC QUIT WORKING AND I WOULD LIKE TO KNOW IF THEIR IS A GOOD PLACE TO START LOOKING FOR LEAKS.I HAVE GOT A CAN OF SUVA LEAK DETECTOR TO PUT IN SYSTEM.I HAVE HEARD THAT THIS MODEL YEAR IS NOTED FOR HAVING LEAKS UNDER DASH.IS THIS SO? THANK YOU.
#849 of 1238 2001 jeep grand cherokee laredo, changed tranny now it stalls
Jul 05, 2011 (4:41 am)
I have a 2001 Jeep Grand Cherokee Laredo that the tranny went out on. I replaced the transmisson, put the transmission fluid in it and went to fire it up for a test drive. Backed out of the drive way and didnt make it 25 feet before it stalled out. Thought it was a battery issue so i went and got a new battery, installed it and started it up again. It now makes a slight ticking noise and than it acts like its gonna stall and then picked back up, does this about 6-10 times and then stalls out all together. What do I do. I am past the breaking point with this vehicle. I have been without it for 4 months, decided to fix it myself to save myself the money and it ended up costing me more than it would have cost to have the shop change it. HELP before I get a shotgun and start taking aim!