2CarPros - Car Questions & Answers

2005 Jeep Cherokee Repair Question


Topics covered: Fuel pump, Spark, Engine.
Mileage: 101,000 miles.

Asked on October 28, 2011

My 2005 Jeep GC will not start what could be the problem?

My 2005 Jeep Cherokee will not start it turns over but will not crank all of a sudden. I had a problem with my serpertine belt and water pump I had them both replaced my car worked fine for about 10 minutes I drove home after having parts put on and it started running hot, I pulled over cut my car off and it never started again? Help please
Avatar Asked by tbholland

Answer

Replied on November 2, 2011

http://www.2carpros.com/articles/car-cranks-but-wont-start

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 okay-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

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems

with compression and valves opening and closing at the wrong time/broken or jumped timing

belt/chain.

Tiny Answered by rasmataz
68 questions asked