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1992 Jeep Cherokee Fuel pump shut down

Tiny
RIVERMISTRANCH
  • MEMBER
  • 1992 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
Fuel pump quit. I replaced the fuel pump, filter, and cleared the lines. Still no fuel. I want to know what sensors, switches, etc. Have the ability to shut my fuel pump off?
Saturday, April 18th, 2009 AT 2:27 PM

2 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hello, What testing have you done? Any trouble codes? With the engine cranking, do you have spark at the plugs and injector pulse? With key on, no crank, is there fuel pump prime? Did you ever check for fuel pressure?

Possibilities--fuses, fuse circuits--voltage and ground circuits--fuel pump relay-- fuel pump ballast resistor bypass relay-- cam sensor--crank sensor--wiring circuits to everything above.

Check for trouble codes, do some testing.
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Saturday, April 18th, 2009 AT 3:04 PM
Tiny
CRZYDRVR
  • MEMBER
  • 432 POSTS
Another thing to have checked out is the automatic shutdown relay, and the wiring in that circuit.
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Wednesday, April 22nd, 2009 AT 8:42 PM

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