SOURCE: Check engine light
Please be advise that if you drive this and the check engine light is flash on and off. you should not drive it any more till you find the problem because you can cause more damage to the truck if the light is flash. there are many things that could cause this running condition: TPS, EGR, Bad injector, Idle air control and more would need to know codes that are in the computer, engine size 2 or 4 wheel drive, does it have A/C, Cruise, traction control, ABS brakes, then I maybe able to help you
SOURCE: Oil pressure light comes on after driving on highway for 10 miles
Sounds like your sending unit sensor - if it was your pump going out, your engine would be history by now. Rule of thumb, if your oil check light ever comes on, it's usually too late to remedy the problem. You have a major issue, but since you've obviousely drove it quite a bit since then and it still hasn't seized up, I'm guessing you're ok...for now. Since you took it to a shop and they said you're ok, I'm assuming they checked your level and visually checked for leaks and found nothing. Either, you've got somethijng partially blocking your pick-up tube for the pump which is in your oil pan, or a electrical issue with the sensor. I would start by having someone check the sensor out and go from there...good luck.
SOURCE: 1999 grand cherokee laredo 4.0 and auto trans wont downshift
The Transmission Control Module also turns on the check engine light. However the parts store won't be able to read these codes since all they read are the Engine DTC's. More then likely your codes will come back to a Governor Pressure Sensor and/or Switch. If they do then remove the pan and replace both of those. Simple fix, should be able to be done in about an hour or so. Might as well go ahead and slap a speed sensor in while you're under there. Should be able to do it yourself for less then $200.
SOURCE: 1993 Jeep Grand Cherokee 8 cylinder, My "check
A failing crank sensor sometimes won't set a code, but it will not prevent the check engine light from coming on.
I'd test it with an ohmeter both hot and cold just to make sure it's good, but think your problem is likely to be a connection between the ignition switch and the computer or a security system fault (if you have one). I'm not absolutely positive, but I believe that both years on that sensor are interchangable. It is also possible that some time in the past, the engine or flywheel was replaced and required the sensor to be changed along with that repair. If the vehicle was running fine before this problem arose then likely, whatever parts were installed were just fine.
In disconnecting and re-connecting the battery it can cause a small electrical arc that will temporarily "weld" a bad connection back together till vibration or temperature change causes the connection to come apart again. That can happen in the harness connections or even on the computer internal board. Neither are easy to find and you will need to check continuity of any and all power wires going into the computer (grounds too) in order
to locate the problem.
Chilton has good wiring diagrams and I'd definitely be using that manual as a guide. If I can find a decent diagram for your vehicle, I'll send it later, but I'm not sure I have one.
Good luck and be patient!
Testimonial: "Gotta love it, turns out that the engine block was from a 1994. Someone must've swapped out the engine..It turned out to be a bad Crank sensor. Thanks for all your help.."
SOURCE: 2006 jeep commander check engine light coming on
implausible fuel signal i fould this at canobd2.com
131 views
Usually answered in minutes!
×