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97 grand cherokee not firing

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Old Jan 31, 2014 | 09:08 AM
  #1  
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Model: Cherokee
Default 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
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Old Feb 1, 2014 | 01:37 AM
  #2  
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From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
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Check your ASD (auto shutdown) relay. Swap it with one of the headlight relays and see it it fires up then.

Welcome to CF!
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Old Feb 1, 2014 | 02:26 AM
  #3  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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Possible alarm issue close all doors and lock go to passenger door unlock with key reach thru door and try start.
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Old Feb 1, 2014 | 03:42 AM
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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

Last edited by tapp4799; Feb 1, 2014 at 01:47 PM.
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Old Feb 3, 2014 | 02:38 PM
  #5  
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From: Mexicali BajaCalifornia
Year: 1997
Model: Grand Cherokee
Engine: 5.2
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fuel pump?
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Old Feb 5, 2014 | 05:22 PM
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Year: 1998
Model: Grand Cherokee
Engine: 4.0
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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; Feb 5, 2014 at 05:25 PM.
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Old Feb 6, 2014 | 05:55 AM
  #7  
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From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
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I think he fixed it already.
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Old Feb 6, 2014 | 07:31 AM
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Yes all fixed I was told the wrong dizzy had been bought and once a new on arrived it fired straight away thanks for all the help
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