no start
03-31-2012, 11:33 PM
#1
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Year: 1994
Model: Grand Cherokee
Engine: 5.2
no start
I have a 97 cherokee limited 4.0 auto that will not start.. I have fuel at the injectors, and spark at the plugs. There is no 12 volts at the injectors or on the dark green/ orange wire coming from the CPM.. I've replaced the CPM and an still the same problem.. 5 volt test says all the sensors are working. Neutral Safely switch seems to working as the car will not crank when in gear.. It cranks but no start when in park or neutral. . Well charged battery.. I'm at a lost and would like some help as to where to go from here..
04-04-2012, 11:29 PM
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Year: 1994
Model: Grand Cherokee
Engine: 5.2
well not sure what the fuel pressue is.
Did have one minute of success.. by passed the cpm and applied 12 directly to the dark green/orange stripe wire and it started right up and ran great for 4 to 5 minutes,, then the fuel pump shut down... reset the pump and it started again and ran for about 2 minutes and shut down the fuel pump again.. sending back the cpm and they are going to check it and return with new flash . supposely.. When it ran it ran great no miss and idled great and seem to have full power for 2 to 3 miutes.. should get the cpm back in a few days.. I'll let you know..
goin in to hospital for an operation and will not be able to do much for a while.. but if you have any suggestions please post them.. Thank you
Did have one minute of success.. by passed the cpm and applied 12 directly to the dark green/orange stripe wire and it started right up and ran great for 4 to 5 minutes,, then the fuel pump shut down... reset the pump and it started again and ran for about 2 minutes and shut down the fuel pump again.. sending back the cpm and they are going to check it and return with new flash . supposely.. When it ran it ran great no miss and idled great and seem to have full power for 2 to 3 miutes.. should get the cpm back in a few days.. I'll let you know..
goin in to hospital for an operation and will not be able to do much for a while.. but if you have any suggestions please post them.. Thank you
Last edited by 94zjdriver; 04-04-2012 at 11:34 PM.
07-09-2012, 09:47 PM
#5
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Year: 1994
Model: Grand Cherokee
Engine: 5.2
Finally got it started. Was the shut down module in the security system, located under the battery bolted to the fender. Old guy at the dealer was the only in the large shop who had any idea where it was, as the book said it was under dash and could not be located there. Hope we never lose the old guy. Lol
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