No fuel pressure
06-22-2021, 08:38 PM
#1
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No fuel pressure
No fuel pressure at fuel rail. I have replace fuel pump, fuel filter and checked relay. Still not getting any fuel pressure? 1994 Cherokee with 4.0..... any ideas?
06-22-2021, 08:52 PM
#2
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
- Have you checked the fuse?
- Have you checked for voltage at the pump?
06-22-2021, 09:46 PM
#4
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
12 on cranking, 8 or so in Run position
06-22-2021, 10:41 PM
#5
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Year: 1989
Model: Comanche (MJ)
Engine: 4.0
Did the 94 have the ballast resistor, or was 93 the last year for it? I'm also thinking the engine computer runs the pump briefly to prime it when you first turn the key on and then not again until it sees the engine cranking, or is that just the Renix?
06-22-2021, 10:47 PM
#6
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I think they had the ballast resistor until they went returnless fuel delivery.
As for the 94, I'm not sure. It has to have a priming feature though.
As for the 94, I'm not sure. It has to have a priming feature though.
06-23-2021, 10:48 AM
#7
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
I had a 94. I don't remember a ballast resistor. I remember seeing people post about it and thinking it was weird.
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