98 5pd issues please help.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Fuel filter is just a basic screen and it's actually part of the whole fuel pump assembly in the tank.
Have you verified pressure at the fuel rail with a gauge on the schraeder valve?
What spark plugs did you install and are you sure the wires are in correctly?
Have you verified pressure at the fuel rail with a gauge on the schraeder valve?
What spark plugs did you install and are you sure the wires are in correctly?
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Senior Member
Joined: Nov 2009
Posts: 826
Likes: 0
From: manchvegas nh
Year: 1998
Model: Cherokee
Engine: 4.0L
pressure was 42-50 psi and the plugs are right
i just changed the upper 02 sensor and its running proper now thanks for all the help guys
i just changed the upper 02 sensor and its running proper now thanks for all the help guys
Thread Starter
Senior Member
Joined: Nov 2009
Posts: 826
Likes: 0
From: manchvegas nh
Year: 1998
Model: Cherokee
Engine: 4.0L
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