Question about Jeep Comanche

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1987 Jeep Comanche starts normally, but the engine turns off as soon as the ignition switch is released. I have gas flow from the "straight valve" in the gas line as long as I hold the ignition switch in the start position. There is no fuel flow when I release the ignition key. Is there a fuel pump relay in that circuit?

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 19 Answers

SOURCE: Ignition switch on my 1987 Saab 900i

You may need to remove the ignition housing assembly to find out whats wrong inside. There are a series of small gears which connect the ignition barrel to the ignition switch & also operate the reverse gear lock mechanism. You'll need a special 3 pronged tool to remove the assembly - available from SAAB dealers.

Posted on Sep 03, 2008

  • 188 Answers

SOURCE: 1987 jeep comanche has new fuel pump,won't start

The pump is in the fuel tank. You need to replace the fuel pump. it is dying, and will sooner or later die all together. Have you changed the fuel filter????? Also check that out!!!!

Posted on Feb 14, 2009

dealt_soul
  • 296 Answers

SOURCE: 87 ford f-150 4.9 L. v6 fuel system

If you hear the relay click, but no pressure at all then it would be the fuel pump needing replacement

Posted on Feb 16, 2009

  • 2 Answers

SOURCE: 1987 chevy r10 won't start

Assuming it is a fuel problem I checked at the carb. to be sure no gas was being pumped through the filter located under the power steering pump then the fuse on my 87 s10 was the ECM fuse.then check for the relay to click and the had to replace the oil pressure sending unit and mine started right up..the oil pressure must be about 4 lbs for the Pump tp operate...I loosened the fuel line to ck. for fuel but thats living dangerously...a pressure guage would be on the safe side......

Posted on May 18, 2009

  • 9 Answers

SOURCE: 1995 Jeep Cherokee Country straight 6 cyl 4.0L: I

First of all, the fuel pump is generally located in the fuel tank, not always though. Yours probably is, in did not research it. The fuel electric fuel pump turns on only when the ignition key switch is turned to the start position and then left on. A series of one or two relays along with a pressure monitor in the fuel rail delivery system may or not cycle it on and off depending on design. Enough of that. I suggest that you remove the spark plugs to see if they are oil/heavy cabon deposits.If so, professional attention is reguired. One more thing you could try is replacing the spark plug wires. the may be old/worn out/damage. This would give the engine spark a stronger spark,if worn and also replace the spark plugs.

Posted on Jul 30, 2009

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