Great video. A bad key or loose key switch can set off the security in the computer and similar things. It finally fixed mine. A bad battery, loose battery cables did it once too, set off the security, which makes it do weird things.
Most Excellent ! I have a 99 GC Laredo 4 By w/ 4.0L and I have replaced EVERYTHING in the engine bay but the engine (189K Running Strong!) I do However have to replace sensors more often than I would like. I thank God this is My Winter and Utility Hauler Rig because It would Bankrupt Me if it was my Daily Driver!.... Information Good.... UG
Guys its 20 years old. Who has a 20 year old mobile phone or a 20 year old PC that has never had problems. It's amazing to me that these things stuck under the bonnet getting hot and cold and wet are still working. Plz don't say jeeps are bad. Some of these jeeps have drivers that were not even born when their Jeep was made 😂
Check all the ground wire connectors at the different areas in the engine compartment. Battery , battery grind ire to engine, 3 ground wires behind the distributor on side of the block if its a 4.0 , under the computer box or computer wiring harness is two thick ground wires that mount to the gender well , ground wire from fire wall to engine block. I cut off the factory ground wire connectors and put new crimped connectors on and soldered them . the problem with the factory crimped connectors are that after years of hot/cold and dry and wet conditions the exposed wire inside the crimped connector oxidizes and a fine layer of film forms causing the ground to not make a full connection or hit and miss contact . I also use dielectric grease on connectors that are screwed or bolted down. Jeep 1990's especially are bad about the locking wire connectors that go on the PCM to get weak and cause loose connection at the PCM .
So I have a 2000 jeep grand Cherokee 4.7, vehicle runs for exactly 15 minutes and dies! But before it starts u have to wait for the gas gauge to register after about 10 secs. Idk what else to do bfr I replace a ecm. Please any advice would help. Much appreciated
My old TJ Wrangler has the computer bypassed for the injectors and the fuel pump. It has been this way for about a month. This allows the old Jeep to run smoothly after it warms up. I will be buying the computer in about two months. For now, I am satisfied with my computer bypass. It does some very strange things when I first start it and the engine is cold.
We have a 05 GC Limited with the 4.7 L. Been having this very issue for over a year now. We ordered the replacement computer that we had to give the VIN and current mileage before ordering. Haven't replaced it yet as of 6/21/18 because the new one is in route to us. I'm praying this fixes the issue. After watching your video I have great concerns with having to have to take it to the dealer for further programming. Let's pray because this is my 3rd GC and I love it. But this is the last draw I'm about to junk it.
Brian - What was the outcome, if you don't mind? My '07 Commander is doing some crazy stuff ( mostly a weird skip / stutter when I push the accelerator, off and on) - twelve codes on their reader, none related. Every single injector code. My mechanic shop, who I've always felt was honest, says we should probably replace the computer, and it'll be $800 - $1100. I see the computers online, pre-programmed, for a lot less. Hoping to save the money lol
For what it's Worth EBay search Jeep Grand Cherokee year engine size. I'm springing for a newly refurbished PCM for my 04 later today, They flash the device to match the vin number on vehicles. It's a plug n play kinda thing.
Also larger battery and starter more amps . .fans. Inside bolt on inlets electrical wires . get hot on inside driver side move them to see if there loose them bolt them on not so tight.
You still have to take to jeep dealer to program to factory setting. They also need to replaced it with factory ecm unit. Total $1350.00. Parts, program the unit included labor. Had just done on 2002 Grand Cherokee.
GOOD VIDEO! I AM HAVING A SIMILAR PROBLEM! BUT MINE CRANKS, BUT NO START! NO GAUGES, NO FUEL PRESSURE, NO SPARK! HAD THE ANTI THEFT REPROGRAMMED! BEFORE I SENT THE COMPUTER OUT THE JEEP WOULD START AND RUN FOR 3 SECONDS! NOW IT DOES NOT RUN AT ALL! ALSO NO POWER GOING TO THE CRANK SENSOR! I HAVE CHECKED ALL FUSES, CHECKED ALL RELAYS ALL GOOD! NO WIRES RUBBING ANYWHERE! THIS IS AN OLD YOU TUBE VIDEO AND I WOULD NOT EXPECT TO HERE BACK FROM YOU!
If it is a no start, no spark condition, take the computer apart, inspect the solder joints, re-solder the broken joints and you are done. Fixed my 94' with a no spark condition. I did it myself for zero dollars. In a different situation, If it runs for 15-20 minutes and then shuts off in repeated experiments then it is the Crank sensor.
This model does not have the bad solder joint problems in the pcm. They redesigned the pcm around 2004. Just popped one open today it’s a solid design.
Feel bad for the poor bastard who gets a shop bill for more than the worth of the Jeep. I have a 2000 Jeep GC that I may have to send to the crusher for this same reason.
Lol I feel yah !! I have a 02 liberty im having. Numerous problems with ..feeling like take in back roads rolling that fucker lol.definition of jeep : just eats every penny !!!
I had that problem and ending up change tps and IAC then I had a lost of power on the gas change the fuel pump and now vehicle work perfect and I also change spark plug and power more than a horse..
Dont send it just yet. Part it out then sell the remains for scrap metal thats what junk yards do for profit. P.S your helping other jeepers out there with spare parts like rims, fuse boxes, etc.
I have 2002 GC with a high idle, idles at about 1200 in drive. Changed iac, tps, pcv valve, air temp sensor, coolant temp sensor, checked for vacuum leaks. All factory parts, no luck.
Seems any Jeep has goofy computer issues! Just had crank sensor issue replaced it that went away and up come a p0301 in its place. Injection pulse fine spark fine compression good etc, etc . POS crustier .
Great Video. Just purchased a 2001 JGC v8. After replacing the battery terminals the car is very consistent with the issues it has now. Seems like the PCM as there are several intermittent electrical components going on and off. A/c, ABS, speed sensor, ignition system. I'm not sure if I should attempt to just replace the PCM as I've cleaned all the grounds and can't find any shorts in any of the wires. Some people have said that it could even be the ignition switch and i'm not sure, although it seems like it works after jiggling the key and reinserting it a couple times.
I had about 2 people tell me my jeep had a short circuit and that the pcm wasnt bad i went to a junkyard replaced my tcm and pcm and it works great i paid those so called repair mans for nothing... they wouldnt even tell me exactly where its shorting out and i had to pay them just for coming to my house to check it 😂 its crazy i tell you
Ya my 07 is the same as well ,i just replaced the CrankShaft Sensor but some people call it the C Shaft Positioning Sensor. Is there 2 sensors or 1? So now what i still dont have spark abd or fuel so im thinking Module? Something...... Anyone, im stuck ???
My mom's '97 Laredo began draining the battery constantly. She took to a local mechanic who replaced the PCM and the Jeep began honking nonstop (Security issue?). The odometer reading went from 78K to 221K. The mechanic refused to believe it was his fault (Jeep never left the parking lot) and refused to repair, after charging her $1800! We've taken it to the local Jeep dealer twice, and many other mechanics, but none can find the problem. I pulled the horn fuse. The Jeep is hard starting and stalls now. I've been told the PCM code wasnt programmed to work with mom's Jeep and also the idea of reinstalling the original PCM. I would like to get a new PCM if possible, but can't find a mechanic who knows how to program the Jeep. Anybody in N. Ca who can help??? Thanks so much for the helpful vid. I wish you could repair ours!!!
I have a 98 Grand Cherokee used to do the same thing. They're known to have security issues it's very very common. Waking up at randomly at 6 in the morning with the alarm going off for no reason.
I'm having similar problems with an '04 Grand Cherokee Overland, 4.7L HO. 266xxx miles. The timing chains & guides are worn but all timing marks still line up correctly. After repairing vaccume leaks, it ran perfectly (aside from chain noise) for a few weeks. Now, it developed a hard stumble during driving & often stalls. Replacing cam & crank sensors did not fix the problem. It got to where it will not start & I'm getting no voltage at the harness connectors for the ignition coils. I found heat discoloration on the terminals of the auto shutdown relay. I am suspecting a relay and/or PCM problem. Needing some helpful advice on how to proceed.
Got a 97 grand Cherokee with the 4.0 in it. It runs good for awhile then act up. Got told at the garage it's the computer. Now the last two weeks it's been acting up real bad. I'm going to reset the computer hope that fixes the problem until I get the money for the computer.
Hello, I have a problem with my jeep garn cherokee 2000. do you drop the needles or clocks of the board turns off the air and do not lower the electric glasses that can be?
My 03 Jeep Grand Cherokee has been town for a little while. I fixed it, but then I try to jump it and start it up, the alarm goes off, my dash goes crazy & I just seen another video where the guy resets the computer, so maybe I’ll try that, but thought I should comment in case you had a different opinion.
Did you have to take the TCM out to get the computer our? I can't get mine past it. It's doing exactly what this one is and have replaced about everything else on it.
I'm having an issue with my 2005 Wrangler TJ 4.0L I-6. Mechanics are running out of solutions and having idle rough running. It is also at higher RPM's it will run, too, but not well. There next step tomorrow is that they will be reflashing the computer. Is that essentially what you did?
Getting a transmission over temp message on my 2006 commander took it to the dealer and said it is a bad pcm. Idk if I want to spend the $850 to replace it. Amy ideas
Try to find one at a junkyard i found a pcm for my 01 cherokee sport on a 2000 cherokee sport and it works great it starts the first time and everything. I went to 15 different junkyard until i found one with multiple cherokees ive been to one with 3 commanders all wrecked never get a PCM from a flooded car.
Car Computer Exchange sells rebuilt PCM's for $199 with a lifetime warranty. carcomputerexchange.com/jeep/commander/2006-jeep-commander-ecm-pcm-engine-control-module/prod_590.html
Dude you said you got that that one from South Carolina or you're working on it and it's from or the people or from South Carolina reason being is I'm working on a Jeep Cherokee white 4.7 doing exactly what yours is doing right there everything is I f****** identical that kinda gives me the chills
Ok my wj 4.7 v8 had the same problems.. I have change ... spark plugs coils and injectors with petrol pump and map sensor and now for the first time it give me a code p 0302 .. it start easy , it idle , but only a little rought. My next step is to check the electics that feed no 2 cylinder .... injector , coil and do a compression test.. so far I havent touch the pcm.. that means the pcm on this video jeep are still ok 👌 but needs mybe a reprogram... before I was into Jeep and didnt know any... but just hurt about all jeeps problems... I have said... Jeep factory needs to start looking into the computer programming.... that sucks
I have a 2002 jeep liberty was told may need pcm ..have had 3 didn't options timing chain.crank sensor..fuel pump..change crank and can sensor ..then started acting funny stalling hard starting throwing difrnt codes won't drive over 40 mph bucking ..iam at my Whits end does this sound like a bad pcm
Austin...I agree with you. I had a 2005 Rubi TJ....babysat that bitch until the TCM took a dump. Could not do anything about it. Had it at the local Dodge dealership....it was there for more than two months. As a gesture of good faith, they let me trade it in on a Tacoma....ironic thing is I got rid of my old CJ because I wanted something newer that I would not have to work on so often. What am I doing now? Looking for an old good CJ 7. LOL...Oh Well.
TONS of places with just as many prices. Google it! BE SURE you find one that flashes the PCM for you so that your new PCM is 'plug-n-play' so that you DO NOT have to take it to a dealer for that ANNOYING AF 'flash' service, AND which costs $150-250!! Aloha
Its the cooling system wires from computer to motor starter oil fuel injection move that whole wires you will here the same damage wires . jeep need air scoop 2 small fans advance timing . electric water pump stainless steel coolant hoses top bottom and heater core wire. Small computer fan inside fuse relay on the driverside. If don't want electric water pump larger radiator just by a snotch larger oil pan and larger transmission pan made of iron type material like the heads n motor
I have a 2000 Jeep Grand Cherokee Laredo. Electrical issues started with gauges and Windows only working intermittently. Doing a reset by removing neg. Battery cable works sometimes. I have cleaned on grounds. Issues continue and worsen. I love this vehicle but am ready to be rid of the problems. It's always something.......
I have a 2002 Jeep Grand Cherokee limited with the 4.7 V8 and just yesterday the engine started shaking like crazy. I used my scanner and got a code P0202 which is a bad #2 injector but I replaced it and it's still the same. Anybody have any idea what I should be looking for?
***** well I took it to the dealer and cylinder 2 has no compression. So they said it's either the engine or the head but they wouldn't be able to tell me exactly unless they started tearing it down. So I guess I'm gonna have to sell it.
My 2002 GC with the 4.7 V8 had a piston break off from the crank shaft. Engine ran very rough I bought a new car and junked the GC, not worth putting a new engine in a 15 year old car.
Oh really. I own a buick lesabre, just sold another. Had to replace computer on one, other had ABS computer issues, dual climate control was a nitemare (dash removal needed to service heater core or ac condenser... ) however i still would own another. Also have two Jeeps, choose your path and have a good time!
![Lp. Сердце Вселенной #1 НАЧАЛО ПУТЕШЕСТВИЯ [Новый сезон] • Майнкрафт](http://i.ytimg.com/vi/380Q7gLWGvk/mqdefault.jpg)
Great video. A bad key or loose key switch can set off the security in the computer and similar things. It finally fixed mine. A bad battery, loose battery cables did it once too, set off the security, which makes it do weird things.
Most Excellent ! I have a 99 GC Laredo 4 By w/ 4.0L and I have replaced EVERYTHING in the engine bay but the engine (189K Running Strong!) I do However have to replace sensors more often than I would like. I thank God this is My Winter and Utility Hauler Rig because It would Bankrupt Me if it was my Daily Driver!.... Information Good.... UG
Guys its 20 years old. Who has a 20 year old mobile phone or a 20 year old PC that has never had problems. It's amazing to me that these things stuck under the bonnet getting hot and cold and wet are still working. Plz don't say jeeps are bad. Some of these jeeps have drivers that were not even born when their Jeep was made 😂
Check all the ground wire connectors at the different areas in the engine compartment. Battery , battery grind ire to engine, 3 ground wires behind the distributor on side of the block if its a 4.0 , under the computer box or computer wiring harness is two thick ground wires that mount to the gender well , ground wire from fire wall to engine block. I cut off the factory ground wire connectors and put new crimped connectors on and soldered them . the problem with the factory crimped connectors are that after years of hot/cold and dry and wet conditions the exposed wire inside the crimped connector oxidizes and a fine layer of film forms causing the ground to not make a full connection or hit and miss contact . I also use dielectric grease on connectors that are screwed or bolted down. Jeep 1990's especially are bad about the locking wire connectors that go on the PCM to get weak and cause loose connection at the PCM .
So I have a 2000 jeep grand Cherokee 4.7, vehicle runs for exactly 15 minutes and dies! But before it starts u have to wait for the gas gauge to register after about 10 secs.
Idk what else to do bfr I replace a ecm. Please any advice would help.
Much appreciated
My old TJ Wrangler has the computer bypassed for the injectors and the fuel pump. It has been this way for about a month. This allows the old Jeep to run smoothly after it warms up. I will be buying the computer in about two months. For now, I am satisfied with my computer bypass. It does some very strange things when I first start it and the engine is cold.
We have a 05 GC Limited with the 4.7 L. Been having this very issue for over a year now. We ordered the replacement computer that we had to give the VIN and current mileage before ordering. Haven't replaced it yet as of 6/21/18 because the new one is in route to us. I'm praying this fixes the issue. After watching your video I have great concerns with having to have to take it to the dealer for further programming. Let's pray because this is my 3rd GC and I love it. But this is the last draw I'm about to junk it.
Brian - What was the outcome, if you don't mind? My '07 Commander is doing some crazy stuff ( mostly a weird skip / stutter when I push the accelerator, off and on) - twelve codes on their reader, none related. Every single injector code. My mechanic shop, who I've always felt was honest, says we should probably replace the computer, and it'll be $800 - $1100. I see the computers online, pre-programmed, for a lot less. Hoping to save the money lol
Good old road salt gotta love it.
How much for the computer and programmed??
Got I 2001 WJ 4.0.
For what it's Worth EBay search Jeep Grand Cherokee year engine size.
I'm springing for a newly refurbished PCM for my 04 later today,
They flash the device to match the vin number on vehicles.
It's a plug n play kinda thing.
Also larger battery and starter more amps . .fans. Inside bolt on inlets electrical wires . get hot on inside driver side move them to see if there loose them bolt them on not so tight.
I really wish you would have shown at least a little bit of the computer removal.
You still have to take to jeep dealer to program to factory setting. They also need to replaced it with factory ecm unit. Total $1350.00. Parts, program the unit included labor. Had just done on 2002 Grand Cherokee.
You can buy a rebuilt one from eBay, they send it already programmed, plug and play
@@21MILlet .
Really??
No manches.
13 hundred.
But that: how she's running buddy??
It is four bolts and three harnesses. It is straight forward.
it has gas now!
AINT GOT NO GAS IN IT!!!
GOOD VIDEO! I AM HAVING A SIMILAR PROBLEM! BUT MINE CRANKS, BUT NO START! NO GAUGES, NO FUEL PRESSURE, NO SPARK! HAD THE ANTI THEFT REPROGRAMMED! BEFORE I SENT THE COMPUTER OUT THE JEEP WOULD START AND RUN FOR 3 SECONDS! NOW IT DOES NOT RUN AT ALL! ALSO NO POWER GOING TO THE CRANK SENSOR! I HAVE CHECKED ALL FUSES, CHECKED ALL RELAYS ALL GOOD! NO WIRES RUBBING ANYWHERE! THIS IS AN OLD YOU TUBE VIDEO AND I WOULD NOT EXPECT TO HERE BACK FROM YOU!
If it is a no start, no spark condition, take the computer apart, inspect the solder joints, re-solder the broken joints and you are done. Fixed my 94' with a no spark condition. I did it myself for zero dollars. In a different situation, If it runs for 15-20 minutes and then shuts off in repeated experiments then it is the Crank sensor.
This model does not have the bad solder joint problems in the pcm.
They redesigned the pcm around 2004. Just popped one open today it’s a solid design.
Feel bad for the poor bastard who gets a shop bill for more than the worth of the Jeep. I have a 2000 Jeep GC that I may have to send to the crusher for this same reason.
Lol I feel yah !! I have a 02 liberty im having. Numerous problems with ..feeling like take in back roads rolling that fucker lol.definition of jeep : just eats every penny !!!
I had that problem and ending up change tps and IAC then I had a lost of power on the gas change the fuel pump and now vehicle work perfect and I also change spark plug and power more than a horse..
Dont send it just yet. Part it out then sell the remains for scrap metal thats what junk yards do for profit. P.S your helping other jeepers out there with spare parts like rims, fuse boxes, etc.
I have 2002 GC with a high idle, idles at about 1200 in drive. Changed iac, tps, pcv valve, air temp sensor, coolant temp sensor, checked for vacuum leaks. All factory parts, no luck.
Seems any Jeep has goofy computer issues! Just had crank sensor issue replaced it that went away and up come a p0301 in its place.
Injection pulse fine spark fine compression good etc, etc . POS crustier .
Great Video. Just purchased a 2001 JGC v8. After replacing the battery terminals the car is very consistent with the issues it has now. Seems like the PCM as there are several intermittent electrical components going on and off. A/c, ABS, speed sensor, ignition system. I'm not sure if I should attempt to just replace the PCM as I've cleaned all the grounds and can't find any shorts in any of the wires. Some people have said that it could even be the ignition switch and i'm not sure, although it seems like it works after jiggling the key and reinserting it a couple times.
My 07 has even more of a crazy issue that no one can figure out.!
Adam Adam my 2006 jeep commander is the same!
I had about 2 people tell me my jeep had a short circuit and that the pcm wasnt bad i went to a junkyard replaced my tcm and pcm and it works great i paid those so called repair mans for nothing... they wouldnt even tell me exactly where its shorting out and i had to pay them just for coming to my house to check it 😂 its crazy i tell you
Did you have to reprogram it after those parts replaced
@@frankieguevara9807 yeah, anytime a new computer is added, it has to be programmed
Ya my 07 is the same as well ,i just replaced the CrankShaft Sensor but some people call it the C Shaft Positioning Sensor.
Is there 2 sensors or 1?
So now what i still dont have spark abd or fuel so im thinking Module?
Something...... Anyone, im stuck ???
My mom's '97 Laredo began draining the battery constantly. She took to a local mechanic who replaced the PCM and the Jeep began honking nonstop (Security issue?). The odometer reading went from 78K to 221K. The mechanic refused to believe it was his fault (Jeep never left the parking lot) and refused to repair, after charging her $1800! We've taken it to the local Jeep dealer twice, and many other mechanics, but none can find the problem. I pulled the horn fuse. The Jeep is hard starting and stalls now. I've been told the PCM code wasnt programmed to work with mom's Jeep and also the idea of reinstalling the original PCM. I would like to get a new PCM if possible, but can't find a mechanic who knows how to program the Jeep. Anybody in N. Ca who can help??? Thanks so much for the helpful vid. I wish you could repair ours!!!
I have a 98 Grand Cherokee used to do the same thing. They're known to have security issues it's very very common. Waking up at randomly at 6 in the morning with the alarm going off for no reason.
There's a purple wire in the driver side door you can ground it in your alarm won't work at all but it fixed my problem.
There's a pretty easy fix for the PCM that might fix it. All you have to do with solder a few things. Just did it on mine.
Great Honest Work, and video, Thanks much
genus work
I'm having similar problems with an '04 Grand Cherokee Overland, 4.7L HO. 266xxx miles. The timing chains & guides are worn but all timing marks still line up correctly. After repairing vaccume leaks, it ran perfectly (aside from chain noise) for a few weeks. Now, it developed a hard stumble during driving & often stalls. Replacing cam & crank sensors did not fix the problem. It got to where it will not start & I'm getting no voltage at the harness connectors for the ignition coils. I found heat discoloration on the terminals of the auto shutdown relay. I am suspecting a relay and/or PCM problem. Needing some helpful advice on how to proceed.
Got a 97 grand Cherokee with the 4.0 in it. It runs good for awhile then act up. Got told at the garage it's the computer. Now the last two weeks it's been acting up real bad. I'm going to reset the computer hope that fixes the problem until I get the money for the computer.
do you think a 2006 jeep would do the same noise on the relay boxes if it was the computer?
Hello, I have a problem with my jeep garn cherokee 2000. do you drop the needles or clocks of the board turns off the air and do not lower the electric glasses that can be?
Think I have the same problem on my 06 Jeep Grand Cherokee Laredo
My 03 Jeep Grand Cherokee has been town for a little while. I fixed it, but then I try to jump it and start it up, the alarm goes off, my dash goes crazy & I just seen another video where the guy resets the computer, so maybe I’ll try that, but thought I should comment in case you had a different opinion.
Did you have to take the TCM out to get the computer our? I can't get mine past it. It's doing exactly what this one is and have replaced about everything else on it.
Gee, that Jeep sure is clickish! Sorry, I just couldn't help myself. :-O
97 grand cherokee 5.2l same issue. cluster goes haywire. can't lower windows or lock doors.
Did you figure this out? Same issue same vehicle.
How much does this part costs
about $400
Are you replacing the ecm and the pcm too?
They are the same thing.
I'm having an issue with my 2005 Wrangler TJ 4.0L I-6. Mechanics are running out of solutions and having idle rough running. It is also at higher RPM's it will run, too, but not well. There next step tomorrow is that they will be reflashing the computer. Is that essentially what you did?
Getting a transmission over temp message on my 2006 commander took it to the dealer and said it is a bad pcm. Idk if I want to spend the $850 to replace it. Amy ideas
+akaredcrossbow Sell it to me for $200.
lemmieatit did you get a fix
lemmieatit have the exat same prob as you
Try to find one at a junkyard i found a pcm for my 01 cherokee sport on a 2000 cherokee sport and it works great it starts the first time and everything. I went to 15 different junkyard until i found one with multiple cherokees ive been to one with 3 commanders all wrecked never get a PCM from a flooded car.
Car Computer Exchange sells rebuilt PCM's for $199 with a lifetime warranty. carcomputerexchange.com/jeep/commander/2006-jeep-commander-ecm-pcm-engine-control-module/prod_590.html
Dude you said you got that that one from South Carolina or you're working on it and it's from or the people or from South Carolina reason being is I'm working on a Jeep Cherokee white 4.7 doing exactly what yours is doing right there everything is I f****** identical that kinda gives me the chills
Ok my wj 4.7 v8 had the same problems.. I have change ... spark plugs coils and injectors with petrol pump and map sensor and now for the first time it give me a code p 0302 .. it start easy , it idle , but only a little rought. My next step is to check the electics that feed no 2 cylinder .... injector , coil and do a compression test.. so far I havent touch the pcm.. that means the pcm on this video jeep are still ok 👌 but needs mybe a reprogram... before I was into Jeep and didnt know any... but just hurt about all jeeps problems... I have said... Jeep factory needs to start looking into the computer programming.... that sucks
I have a 2002 jeep liberty was told may need pcm ..have had 3 didn't options timing chain.crank sensor..fuel pump..change crank and can sensor ..then started acting funny stalling hard starting throwing difrnt codes won't drive over 40 mph bucking ..iam at my Whits end does this sound like a bad pcm
Austin...I agree with you. I had a 2005 Rubi TJ....babysat that bitch until the TCM took a dump. Could not do anything about it. Had it at the local Dodge dealership....it was there for more than two months. As a gesture of good faith, they let me trade it in on a Tacoma....ironic thing is I got rid of my old CJ because I wanted something newer that I would not have to work on so often. What am I doing now? Looking for an old good CJ 7. LOL...Oh Well.
Can I just replace the computer from a junk yard grand Cherokee , or is it mandatory to program it
Nice diagnosis and informative for those of us that find the PCM a black box. I'm curious where you got the replacement PCM from. Dealer ($$$$)???
Silky Tp
TONS of places with just as many prices. Google it! BE SURE you find one that flashes the PCM for you so that your new PCM is 'plug-n-play' so that you DO NOT have to take it to a dealer for that ANNOYING AF 'flash' service, AND which costs $150-250!! Aloha
Its the cooling system wires from computer to motor starter oil fuel injection move that whole wires you will here the same damage wires . jeep need air scoop 2 small fans advance timing . electric water pump stainless steel coolant hoses top bottom and heater core wire. Small computer fan inside fuse relay on the driverside. If don't want electric water pump larger radiator just by a snotch larger oil pan and larger transmission pan made of iron type material like the heads n motor
I have a 2000 Jeep Grand Cherokee Laredo. Electrical issues started with gauges and Windows only working intermittently. Doing a reset by removing neg. Battery cable works sometimes. I have cleaned on grounds. Issues continue and worsen. I love this vehicle but am ready to be rid of the problems. It's always something.......
awsome men i got the same problem luckly i got someone programing
Like who janeth a dealership
I have a 2002 Jeep Grand Cherokee limited with the 4.7 V8 and just yesterday the engine started shaking like crazy. I used my scanner and got a code P0202 which is a bad #2 injector but I replaced it and it's still the same. Anybody have any idea what I should be looking for?
It might be getting clogged from when you run it for a while and the heat from the motor causing the fuel to boil inside. Is it constant?
***** well I took it to the dealer and cylinder 2 has no compression. So they said it's either the engine or the head but they wouldn't be able to tell me exactly unless they started tearing it down. So I guess I'm gonna have to sell it.
+Frankie B check all of your grounds and your battery terminals. Clean them up really good and see if it changes anything.
My 2002 GC with the 4.7 V8 had a piston break off from the crank shaft. Engine ran very rough I bought a new car and junked the GC, not worth putting a new engine in a 15 year old car.
On mine, changing the coil rail fixed a P0202 error. Note that an injector problem would likely come up as P0302.
did he say BRB3 ?
I thought it DDR3
Having similar problem with my Jeep 2001. Starts in Park and then shuts off when idling. :(
Typical chrysler problems. Never heared of it with a GM or ford product
Oh really. I own a buick lesabre, just sold another. Had to replace computer on one, other had ABS computer issues, dual climate control was a nitemare (dash removal needed to service heater core or ac condenser... ) however i still would own another. Also have two Jeeps, choose your path and have a good time!
Pontiac Grand am/ bad computer.