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Fuel pump relay problems

johnc2584johnc2584 Posts: 2
edited August 2015 in Jeep
Hi,
I Have a 1988 Cherokee 4.0 6 Cyn.
Fuel pump will only work if I jump the relay switch. I have replaced the fuel pump, and the relay.
If I turn key on with relay in place, no sound from pump. If I check voltage with key on the light is very dim.
If I check with jump, light is bright. Seems to run fine while jumped, but I want it to be right, with the relay in.
Any thoughts?
Thanks, John

Answers

  • johnc2584 said:

    Hi,
    I Have a 1988 Cherokee 4.0 6 Cyn.
    Fuel pump will only work if I jump the relay switch. I have replaced the fuel pump, and the relay.
    If I turn key on with relay in place, no sound from pump. If I check voltage with key on the light is very dim.
    If I check with jump, light is bright. Seems to run fine while jumped, but I want it to be right, with the relay in.
    Any thoughts?
    Thanks, John

    sounds like oxidation in where the relay goes in.
  • All connections are clean. first thing I did. Could I have gotten a bad relay?
    I bought it at auto zone. Does this part need to be oem?
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