Need your guys' help: 2000 Grand Cherokee won't start.

5

Asked by May 08, 2014 at 05:04 PM about the 2010 Jeep Grand Cherokee Laredo

Question type: Maintenance & Repair

4.0L Inline 6.
Okay, so I've tested the battery and starter, both are strong. We checked the timing and it appears to be unchanged. Whenever I turn the key to 'ON', I'm pretty certain I can hear the fuel pump priming the line...Still nothing. Battery's strong enough to continuously turn the engine when I attempt to start it. I haven't been able to test ignition/electrical or fuel pressure (like I said, I'm pretty sure the pump is working).
Any ideas or suggestions?

4 Answers

12,485

Have you scanned for codes?

5

Yes I have, OBD reader isn't giving anything.

10

Check the crankshaft sensor harness; if the harness or sensor failed, signal will not pass to computer then your ignition circuit remained open and no spark=no ignition. This happened to me once....

1 of 1 people found this helpful.
5

We've managed to narrow it down to either the Crahkshaft sensor (thanks marty) or the engine control module, we've got to get it diagnosed further to get it right

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