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SUVs Jeep Cherokee and Jeep Grand Cherokee Jeep Grand Cherokee Electrical Problems
209 messages, Last post on Nov 23, 2009 at 5:00 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee Forum. Your Hosts are steve_ & tidester
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| I have a 2003 Jeep Grand Cherokee with a 601 ecu error problem but the car runs great and never has demonstrated a problem. I cannot get new tags because of this. I can reset the error, which works for one re start only and after that error shows back up. I put a "new" ECU unit in and it reacts the same way and does not stay reset. There seems to be no change form one ecu to the other and with both the jeep run great. It seems like a virus that keeps re infecting the ecu....any help? | |
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Just wanted to know if anyone has had issues with a new vehicle 1 day after driving it off the lot and what the outcome was? I purchased a new 2009 Grand Cherokee drove it off the lot with 3 miles on the odometer I am currently out of the state from where I purchased the vehicle and I am experiancing electrical issues. Every time you hit the door locks its fuse blows. Its been at a certified Jeep service center for 2 days and I only had the car to drive for 2 days... What kind of compensation should I expect or should I request? The service center still has not been able to diagnose the problem. I just moved to NJ and the vehicle was purchased in VA. So I'm not sure who to contact for complaints and compensation. Please Help! |
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We have recently purchased a 2001 Jeep Grand Cherokee, V6 4.0 with only 69,000 miles for $3,000. Great deal huh! People selling made a claim that vehicle ran fine...only problem was the lady drove the vehicle too long after the water pump going out and cracked the head. Also window motors needed changing in front 2 doors. Well, head was not cracked! Yay!  Fixed the engine easily, changed the window motors and now we get down to the truth - electrical issues  . Occassionaly, the dome lights and stereo will not turn off. Sometimes the dome lights stay on after starting the vehicle and stay on the entire ride and then stay on after pulling out the key right along with the stereo system (infinity gold that came stock). This ends up draining the battery of course. Should we look for shorts in the engine, change the PCM, or get rid of the vehicle as fast as possible!
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Replying to: jon51 (Jun 13, 2008 1:08 pm) |
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| The dash gages on our JGC all turn on, including the Sentry Key security light and the engines dies.Originally it was more random but now its daily. I can unhook the battery to reset everything and it will drive fine for a day. After dying the car restarts, however at any given time it dies. We have had a couple sensors replaced and the electrical brain (ECU?) replaced and a new battery. Car ran good for a month afterwords then back to the same. No error code displays......any ideas? | |
| have a 1994 Grand Cherokee limited with a transmission that stopped engaging. On day it just stopped at a red light and wouldn't move. I changed the filter and fluid and it began to do the following: When starting out, it will not immediately move, as if it is not in gear. After applying the throttle up to around 3000 rpm, it will lurch into gear and leap forward. It has the same issue going from 1st to second gear, and then seems normal second into third. When it hits fourth gear it will randomly downshift back to third, then up to fourth. When coming off a highway, the transmission does not appear to downshift at all, vibrating violently and then stalling when you come to a stop. It sometimes does this vibrating act when you first start it as well. I brought it to my mechanic, who recommended a transmission shop. He put on an aftermarket oil cooler, and recommended a junkyard transmission. The battery was not holding a charge, so I had a new one plus an alternator put in as well. Nothing changed with the different transmission, so we tried a second used transmission and that did not change the symptoms either. In the end he rebuilt the lower end of the original transmission, which did not change anything either. He finally gave it back to me (no charge except for the battery and alternator) and told me it was an electrical problem, not a transmission problem. My mechanic replaced the speed sensor and governor sensor but that did not change anything either. (He did not charge me.) Does anyone have any ideas? It's got 182K and the 4.0. The transmission is the all-the-time 4-wheel drive. What I'm getting from most people is "hey, it's a Dodge with high miles, why fix it." Any help would be appreciated. | |
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| So, my boyfriend and I went 4 wheeling in tall grass in his 96 Jeep Grand Cherokee Lardeo 4.0, I know, NOT a good idea. The next morning we left to drive about four hours and forgot to check the undercarriage, REALLY not a good idea. We were about 2 hrs in and the transmission started slipping on the highway at about 70 mph. We stopped for gas, it started up fine, and on we went. Transmission was acting up over 70, but seemed fine at 65. He told me to pull off so we could check the fluid, I exited, turned left, and the Jeep died at about 45 mph. Just shut down, no gauges working at all. Cranked but would not turn over, but you can hear the fuel pump come on. We looked under and found grass around the drive shaft that had ripped out the downstream O2 sensor. Of course it was late, no parts stores were open, and we left the repair manual at home... He tried to stick the wires back in the sensor but that didn't work. We got towed home, replaced the sensor, and nothing changed. Checked for fire at spark plug, nothing. We tried to get the check engine light to flash the codes manually, and that didn't work either. No check engine light at all. We went to checking sensors with the volt meter, trying to make the check engine light come on. Nada. Very low (about half of normal) readings on major sensors. We had it towed to a shop, they said it was reading crazy and must be the PCM. We have tried two different ones programmed for the vehicle and they didn't change a thing... Still cranks, no start, no gauges, any ideas? Thanks so much! | |
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kills and starts back up. some times right away some times in a min. or two. one time gauges went crazy. put out code for tps from my reading on this site, i see it is a common problem and we know why they are bankrupt. i have a list of possible suspects, -Battery -TPS -Crank Sensor -cpu,ecu, computer, -maybe alarm, some unplug factory alarm it kills every 100-300 miles and i have 100k mi my understanding is the computer is sensitive, and puts out a false TPS and Crank code. I changed battery and TPS, still died. The comp put out a Crank Shaft Code. I am going to change that then try a new computer from ebay, It did not show a code at autozone but i turned the key three times without starting and it read p0306. it will flash code. if no code it will flash done. Other than that great truck WILL SELL |
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About ten days ago I noticed my 1999 Jeep Grand Cherokee Laredo, 6cyl, 4x4 was leaking radiator fluid. Took it to the shop, they replaced the water pump and also said the cooling fan relay was broken and replaced it. A couple of days later I changed the spark plugs and boots. I then noticed that the interior lights weren't working and tracked down a couple of other electrical issues--button to release liftgate window and the rear wiper weren't working. Took it back to the shop, they traced it to a blowing fuse (#8) and said there was a short somewhere in the liftgate, perhaps the wiper motor or liftgate window button. They are tracking down the short now. I can replace whatever component they identify as busted. Are these things related? Could the busted cooling fan relay have caused a short in one of the liftgate devices? Could I have jostled/pinched a wire in the engine bay (while changing the spark plugs) that caused the short? Do I have a ghost? Thanks for any advice. |
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MY JEEP HAS 132,000 MILES ON HER SHE JUST STARTED TO ACT UP. THE FUEL GAUGE STATES THERE IS NO GAS IN THE CAR. I ALWAYS FILL MY TANK. THE CAR WILL CRANK BUT THE CAR WILL NOT START AT ALL. I DON'T KNOW WHAT THE PROBLEM COULD BE. MY SECURITY KEY LIGHT JUST CAME ON ALSO. COULD THIS BE A PROBLEM ALSO. I'M TRYING NOT TO GO TO THE DEALER SO THEY CAN TRY TO CHARGE ME A ARM AND A LEG. 
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