2002 Jeep Liberty 6 cyl Four Wheel Drive Automatic 69000 miles
The car cranks but never starts. I have done everything. The starter, sensor, etc. Was wondering if it is okay to put a computer of an exact same year make model car. Do I have to reprogram or just replacing/swapping it would be fine?
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
October, 28, 2010 AT 10:31 PM
Yes. I have tried that with the spark plugs. There is no spark. The fuel pump and the relay seem to work. When I turn the ignition on power comes to the engine and fuses. So, I'm guessing it's not the ignition and there's no distributor. I came to a conclusion that it is the computer. The dealer is like 700 including the reprogramming. Is there any cheaper way I can go? Aftermarket is cheaper but is it reliable? And if I buy one where's the good place to reprogram it?
October, 29, 2010 AT 10:44 AM
No spark and distributor: Inspect and Test the crankshaft position sensor
October, 29, 2010 AT 12:02 PM
Crankshaft position sensor had been replaced. : [
October, 29, 2010 AT 12:06 PM
Last stop is the computer if the ignition control module checks out