89 jeep xj 4.0 Fuel pump relay clicks
01-19-2013, 11:52 PM
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Model: Cherokee
89 jeep xj 4.0 Fuel pump relay clicks
My 89 xj makes a clicking noise from the fuel pump relay and I read that my computer could be faulty? What could be the reason for this clicking? I also don't have spark and hope that by replacing the computer it will solve the clicking and no spark dilemma Im not quite too sure. I cleaned all contacts and ground and tested them so Im really just down to my computer being faulty if I means anything my check engine light does not come on not sure if that helps at all 
01-20-2013, 05:35 PM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Very doubtful computer. The relay is controlled by the ignition system. No spark is usually the result of a faulty CPS. Click on the link in my signature and do numbers 1,3,4, and 7.
Swap those 4 relays around and see what happens.
Swap those 4 relays around and see what happens.
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