1998 Jeep Cherokee GAUGES AND FUEL PUMP

Tiny
RAINWIZARD8
  • MEMBER
  • 1998 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 145,800 MILES
Hey Pros I have a serious problem. I got in my jeep yesterday it started fine, I drove it about five miles, went to get back in in to start it and it would not start. My fuel pump will not get output, I have no fire to the cylinders and my gauges don't work. Let me mention, it will crank and dash lights will work, but I have no fire to engine or fuel pump and gauges are out. I know it doesn't have a crash sensor, so do you guys know where I might have a problem? I have checked the ignition switch, crankshaft sensor and all fuses and relays. You guys helped me once hopefully you can again. THANKS
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Tuesday, March 31st, 2009 AT 6:21 PM

5 Replies

Tiny
JAMES W.
  • MEMBER
Do you power to the fuel pump relay socket?
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Tuesday, March 31st, 2009 AT 9:35 PM
Tiny
RAINWIZARD8
  • MEMBER
I do not, its like it's shut down somewhere between the harness and pump. I also have no fire going to the coil or plugs and my light on instrument panel work, but no gauges do. I have checked numerous things like the Balast resister, ignition switch, neutral safety switch, crankshaft sensor, and shift selector switch, fuses and relays too. Any other suggestions what to check?
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Wednesday, April 1st, 2009 AT 11:23 AM
Tiny
JAMES W.
  • MEMBER
There is a module mounted on the fuel tank that the pump circuit passes through. If fuse # 16 in the underhood fuse block is good and you have power to the FP relay socket, the problem must be with the module.
The dash gauge system is feed with 2 circuits. 1- fuse #16 in the underhood block. 2- #9 in the block behind the right side kick panel.
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Wednesday, April 1st, 2009 AT 6:38 PM
Tiny
RAINWIZARD8
  • MEMBER
I ASKED A QUESTION, ABOUT WHY MY SPEEDOMETER OR MY FUEL PUMP WOULD NOT WORK, WELL AFTER DAYS OF SEARCHING FOR ANSWERS AND LISTENING TO SUGGESTIONS I FOUND MY PROBLEM. IT WAS THE CRANKSHAFT SENSOR WAS BAD. I REPLACED NUMEROUS SENSORS AND WIRING HARNESS AND NOTHING FIXED THE PROBLEM, UNTILL I CHANGED THAT AND MU PROBLEM WAS SOLVED.
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Sunday, April 19th, 2009 AT 1:19 PM
Tiny
JAMES W.
  • MEMBER
Glad you found it. Many times on a Jeep, the CPS will fail and not trip a CE light. If the CPS was out, you should have lost injector pulse also. Problem is, there's really no good way to test them.
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Sunday, April 19th, 2009 AT 1:28 PM

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