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Comments
mine was not that bad. but it shut off like the key was turned off.... no studeer or misfire.... and it always started right back
got mine fixed with the very last option #3, I HAD TO REPLACETHE BRAIN (ECU) Got mine off ebay for $185 from
they will program, and ship for that price..... it has a lifetime warranty. It has to be programed for your vin #, part nbr, and mileage.... but they will tell you all that. It took about 35 minutes to swap the part. worked like a charm.......
grand cherokee stalls or dies out.
1) CHECK YOUR CONNECTIONS AT THE ECU (ENGINE CONTROL UNIT) MAYBE CALLED THE PCU (POWERTRAIN CONTROL UNIT) ON THE PASSENGER SIDE FIREWALL. ON 1998 AND EARLIER THE 3 PLUGS SOMETIMES GET A BAD CONNECTION. IT IS USUALLY THE ONE CLOSEST TO THE FENDER. UNPLUG, SPRAY WITH CLEANER AND REPLUG. YOU MAY EVEN HAVE TO WRAP A ZIP TIE AROUND THE UNIT TO KEEP THE PLUG IN TIGHT.
2) FOR 1999 AND LATER
I had same problem.... 87,000 2000 grand cherokee 4.7l
when i let off the gas it might stall. happens 1 to 4 times a day.
so far i have
replaced the crank shaft sensor - it stopped stalling for 3 days $130
cleaned the throttle boddy free
replaced the throttle position sensor $72
replaced the idle air control sensor $132
replaced the map manafold airflow sensor $125
no luck it is still stalling. not sure if i remember the prices
right on these parts....
by the way i have done all the work myself. it was about 30 minutes for most parts.
i just ordered a rebuilt ecu or pcu engine control unit. they program in the vin, mileage and part nbr so you gc will recognize it. $185
we will see when that comes.....
IT CAME AND THAT FIXED THE PROBLEM..... BEEN A year.... SO FAR SO GOOD
alan
Thanks,
Dana
So, I'm currently waiting for the service manual from ebay O(for almost two weeks now). fortunately I have four other four other vehicles to drive and don't want to fumble around making things worse until I have some diagnostic directions.
will keep youj apprised.
Any help would be appreciated.
Any help would be appreciated.
alan
alan
donna maler
mine was not that bad. but it shut off like the key was turned off.... no studder or misfire.... and it always started right back.
I had no codes....
got mine fixed with the very last option #3, I HAD TO REPLACETHE BRAIN (ECU) Got mine off ebay for $185. they will program, and ship for that price..... it has a lifetime warranty. It has to be programed for your vin #, part nbr, and mileage.... but they will tell you all that. It took about 35 minutes to swap the part. just unbold and disconnect the plugs and then plug up the new one. worked like a charm.......
I think your problem might be one of the sensors.
and by the way the sensors are very easy to replace, remove a couple of bolts and swap them out. save yourself $90 in labor. I did not mind replacing the ones that were actually good because I figured they were getting close to the end of their life anyway.
grand cherokee stalls or dies out.
1) CHECK YOUR CONNECTIONS AT THE ECU (ENGINE CONTROL UNIT) MAYBE CALLED THE PCU (POWERTRAIN CONTROL UNIT) ON THE PASSENGER SIDE FIREWALL. ON 1998 AND EARLIER THE 3 PLUGS SOMETIMES GET A BAD CONNECTION. IT IS USUALLY THE ONE CLOSEST TO THE FENDER. UNPLUG, SPRAY WITH CLEANER AND REPLUG. YOU MAY EVEN HAVE TO WRAP A ZIP TIE AROUND THE UNIT TO KEEP THE PLUG IN TIGHT.
3) FOR 1999 AND LATER
This was my problem.... 87,000 2000 grand cherokee 4.7L
when i let off the gas it might stall. happens 1 to 4 times a day.
so far i have:
replaced the crank shaft sensor - it stopped stalling for 3 days $130
cleaned the throttle boddy free
replaced the throttle position sensor $72
replaced the idle air control sensor $132
replaced the map manafold airflow sensor $125
no luck it is still stalling. not sure if i remember the prices
right on these parts....
by the way i have done all the work myself. it was about 30 minutes for most parts.
i just ordered a rebuilt ecu or pcu engine control unit. they program in the vin, mileage and part nbr so you gc will recognize it. $185
we will see when that comes.....
IT CAME AND THAT SEEMS TO HAVE FIXED THE PROBLEM..... BEEN A year.... SO FAR SO GOOD
Jason
Jason
good luck
alan
I have 1996 Cherocee Laredo 4.0 L and it wount start. I'm told it is the PCU. Is there anyone who can tell me where I can get a rebuilt ECu or PCU engine controll unit? My email is ingi.valgeirsson@gmail.com
mine was not that bad. but it shut off like the key was turned off.... no studder or misfire.... and no codes . but it always started right back
got mine fixed with the very last option #3 below, I HAD TO REPLACETHE BRAIN (ECU) Got mine off ebay for $185 from
they will program, and ship for that price..... it has a lifetime warranty. It has to be programed for your vin #, part nbr, and mileage.... but they will tell you all that. It took about 35 minutes to swap the part. worked like a charm.......
grand cherokee stalls or dies out.
option #1
1) CHECK YOUR CONNECTIONS AT THE ECU (ENGINE CONTROL UNIT) MAYBE CALLED THE PCU (POWERTRAIN CONTROL UNIT) ON THE PASSENGER SIDE FIREWALL. ON 1998 AND EARLIER THE 3 PLUGS SOMETIMES GET A BAD CONNECTION. IT IS USUALLY THE ONE CLOSEST TO THE FENDER. UNPLUG, SPRAY WITH CLEANER AND REPLUG. YOU MAY EVEN HAVE TO WRAP A ZIP TIE AROUND THE UNIT TO KEEP THE PLUG IN TIGHT.
option #2
2) THIS MAY ALSO BE THE PROBLEM, IT IS GOING TO SOUND SCREWY BUT THERE ARE TORX SCREWS ON THE 1998 AND EARLIER ECU. BACK THEM OUT ABOUT A THIRD OF A TURN, THE SCREWS ARE TOO LONG AND ARE CAUSING SOME KIND OF SHORT IN THE CONNECTION OR MAYBE THE GROUND.
option #3
3) FOR 1999 AND LATER
I had same problem.... 87,000 2000 grand cherokee 4.7l
when i let off the gas it might stall. happens 1 to 4 times a day.
so far i have
replaced the crank shaft sensor - it stopped stalling for 3 days $130
cleaned the throttle boddy free
replaced the throttle position sensor $72
replaced the idle air control sensor $132
replaced the map manafold airflow sensor $125
no luck it is still stalling. not sure if i remember the prices
right on these parts....
by the way i have done all the work myself. it was about 30 minutes for most parts.
i just ordered a rebuilt ecu or pcu engine control unit. they program in the vin, mileage and part nbr so you gc will recognize it. $185
we will see when that comes.....
IT CAME AND THAT SEEMS TO HAVE FIXED THE PROBLEM..... BEEN 1 year.... SO FAR SO GOOD
1. I've replaced a new battery that was dead after 2 months. The alternator was tested, but was not found to be a problem.
2. Thermostat
3. Radiator
4. Hood latch.
And now I'm getting the following, and I'm rather stuck. It seems like the battery is draining at night, but it's easy enough to jump. The last time I jumped it and took it around, it was still dark, and the headlights flickered. As we were pulling back into our garage, the car died, and we had to push it back into our garage.
I could probably get the alternator tested again, but I'm going to ask, what else could be wrong? Thanks!
Can anyone help
Brian
good luck
Thanks Brian
I just installed the skim module on my 2000 GCL and it still shuts off but i noticed the security symbol is blinking before it stalls, which it did not do before, it just stalled. I still have the gauge problem , they are dead.
Any suggestions.
Thanks Brian
Brought home the scanner and it had high air flow, Ign Crank Sensor, Knock Sensor, Evap System ( had this for a while), Trans engine Speed Input. I figured some of the codes where from the crank sensor going bad. My son inlaw brought home an aftermarket crank sensor and we put it in. Car starts right up and runs for a couple minutes and dyes. Crank Sensor code again. Maybe bad or the wrong one?? Run down to Chrysler and buy another one. Install and car starts right up. Dyes right away. No codes. Start up and runs for twenty minutes or more while I eat dinner. Keep going back to check and its still running. Go inside to grab my wallet to take it for a ride and it is dead again. WTF!! Try to start it and it just turns over and doesn't fire. Wait a while and go back out. Try to start is and it sounded out of time, rpm gauge is going crazy, and smells real bad of gas. Wait a minute and try again and now it sounds like it is just turning over with no spark and barley any compression!!!!! Jeep has 128k miles on it.
Scott
Thanks Brian
New pcm on its way from a company in Florida for $165.00 with a warranty.
They were real helpfui also. Found them on E-bay. They are 95% sure this
will fix my problem.
Thanks for the help.
Brian
Brian
ALAN
Fuel pump comes on with key turn.
Car starts fine.
Car immediately dies with no fuel.
Fuel pump does not seem to run after initial ignition.
Car runs fine if gas provided through carbs.
Alarm module has been removed.
I'm working on getting an adapter so I can pressure test, but seems the fuel pump does not pressurize the system beyond the initial power-on.
I'm curious if there are common culprits I can address here.