93 Jeep Grand Cherokee cranks but won't start
04-26-2017, 11:23 PM
#1
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Model: Cherokee
93 Jeep Grand Cherokee cranks but won't start
93 Jeep Grand Cherokee - 5.2L
just put a new water pump on it now it cranks but won't start
- has fuel to the rail
- has spark
- 7.2V at the injectors
- 12V at the coil - weird because the the injectors and coil should have the same voltage - if you believe the wiring diagrams.
- when I jump across the ASD relay I get 12V at the injectors - still won't start
any help would be great
thanks
just put a new water pump on it now it cranks but won't start
- has fuel to the rail
- has spark
- 7.2V at the injectors
- 12V at the coil - weird because the the injectors and coil should have the same voltage - if you believe the wiring diagrams.
- when I jump across the ASD relay I get 12V at the injectors - still won't start
any help would be great
thanks
04-27-2017, 06:16 PM
#2
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Join Date: Nov 2010
Location: In the middle of Minnesota!
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Year: 1999
Model: Cherokee
Engine: 4.0
Wrong forum. You have a Grand Cherokee.
Post HERE:
https://www.cherokeeforum.com/f5/
And as for spark, is it a strong, BLUE snapping spark?
Fuel at the rail has to be verified with a fuel pressure gauge. It is the only accurate way to know if you have the proper fuel pressure to fire up the engine. Test it and compare it to the factory spec. for your engine.
Best of luck.
Post HERE:
https://www.cherokeeforum.com/f5/
And as for spark, is it a strong, BLUE snapping spark?
Fuel at the rail has to be verified with a fuel pressure gauge. It is the only accurate way to know if you have the proper fuel pressure to fire up the engine. Test it and compare it to the factory spec. for your engine.
Best of luck.
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