98 XJ riddle...probly easy for longtime owner.
07-14-2017, 04:10 PM
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Model: Cherokee
98 XJ riddle...probly easy for longtime owner.
Hi! Nice forum! Hope someone makes short work of this riddle:
It is a 98 XJ auto, 4.0, 4x4, 132K miles, and it is in nice shape. Drove home from work 32 miles after fill up, through some stop and go traffic for 15 min, stopped for iced coffee....started it up and drove the remaining 1 mile to home. Did some yard work for an hour then hopped in jeep to go to dinner...NO START.
Did a quick diagnostic:
Pulled intake hose off airbox and put clean rag over it and hose clamped it on, soaked it with fuel and it starts right up. Can keep it running perpetually if ya keep fuel coming with a squirt bottle...
Then checked couple other things and end result as far as I can tell is:
1. Fuel pump pumping
2. Fuel rail pressurized
3. But considering diagnostic "test" NO injectors injecting.
So bought a new PCM and installed it. No change.
Where do I go from here???
It is a 98 XJ auto, 4.0, 4x4, 132K miles, and it is in nice shape. Drove home from work 32 miles after fill up, through some stop and go traffic for 15 min, stopped for iced coffee....started it up and drove the remaining 1 mile to home. Did some yard work for an hour then hopped in jeep to go to dinner...NO START.
Did a quick diagnostic:
Pulled intake hose off airbox and put clean rag over it and hose clamped it on, soaked it with fuel and it starts right up. Can keep it running perpetually if ya keep fuel coming with a squirt bottle...
Then checked couple other things and end result as far as I can tell is:
1. Fuel pump pumping
2. Fuel rail pressurized
3. But considering diagnostic "test" NO injectors injecting.
So bought a new PCM and installed it. No change.
Where do I go from here???
07-14-2017, 08:42 PM
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Join Date: Jun 2016
Location: York PA
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Year: 2001
Model: Cherokee
Engine: 4.0 Litre I6
By fuel rail pressurized, do you mean you stuck your pocket knife on schrader valve and saw fuel squirt out or did you physically measure the pressure against a know spec?