97 grand cherokee not firing
#1
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Model: Cherokee
97 grand cherokee not firing
Hi
after advise got a 1997 that's turning over but not firing I've changed both the coil and distributor as I was advised it was them but it's still doing the same had a guy round with a computer that didn't come up with any computer problems and he also checked the crank sensor and he said it had a good pulse from it anyone got ideas of where next to check?
Thanks
after advise got a 1997 that's turning over but not firing I've changed both the coil and distributor as I was advised it was them but it's still doing the same had a guy round with a computer that didn't come up with any computer problems and he also checked the crank sensor and he said it had a good pulse from it anyone got ideas of where next to check?
Thanks
#2
Old fart with a wrench
Check your ASD (auto shutdown) relay. Swap it with one of the headlight relays and see it it fires up then.
Welcome to CF!
Welcome to CF!
#4
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Model: Cherokee
just tried both of them and no difference it's still not firing any other ideas?
Thanks for the welcome
Fixed of sorts it appears the wrong dizzy was bought which put the timing off thanks for all help
Thanks for the welcome
Fixed of sorts it appears the wrong dizzy was bought which put the timing off thanks for all help
Last edited by tapp4799; 02-01-2014 at 01:47 PM.
#6
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Year: 1998
Model: Grand Cherokee
Engine: 4.0
Try wiggling the wiring harness and its header on the pcm while someone cranks it over. Common problem, quick and easy test. Any codes present? And by not "firing" you mean you do have fuel pressure with no spark correct?
Last edited by JJCIII; 02-05-2014 at 05:25 PM.
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