Question about 1987 Jeep Comanche

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Pulled off fuel line to carburetor and it is pumping plenty of gas on 1987 Jeep Comanche, what next?

Pulled off fuel line to carburetor and it is getting plenty of gas. What else would cause it to not stay running?

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  • Jonah Oneal Nov 05, 2012

    could be map sensor since it reports engine load to the computer which uses information to adjust spark advance and fuel enrichment map need to receive engine vacuum to adjust spark advance and fuel enrichment.make sure map sensor getting vacuum if yes, problem could be faulty map sensor or faulty ecm.

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  • Jeep Master
  • 14,036 Answers

Idle speed control not working. if idle speed too low engine wont stay running.

Posted on Nov 04, 2012

  • melinda jacobson Nov 04, 2012

    If I pump the throttle it barely stays running, no power. It seems to throttle when I let off the gas, opposite of the way it should be. This is only when I am pumping it.

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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

  • 89 Answers

SOURCE: 1987 jeep comanche will stay runnning only when spraying carburetor cleaner in carburetor or when you pump throttle rapidly

Hello
It sounds like a glogged fuel filter or throttle body problem. Disconnect gas line at carb get a small jar or can to catch gas, hold gas line in jar and have someone crank engine, If you have good gas flow to carb then Its a throtle body problem, (Throtle body and carb are same thing just in case you did not know)could be electrical or mechanical problem at throttle body, Its usually electrical, fuel flow meter. Hope this helps

Posted on Oct 23, 2012

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1987 jeep comanche will stay runnning only when spraying carburetor cleaner in carburetor or when you pump throttle rapidly


Hello
It sounds like a glogged fuel filter or throttle body problem. Disconnect gas line at carb get a small jar or can to catch gas, hold gas line in jar and have someone crank engine, If you have good gas flow to carb then Its a throtle body problem, (Throtle body and carb are same thing just in case you did not know)could be electrical or mechanical problem at throttle body, Its usually electrical, fuel flow meter. Hope this helps

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1 Answer

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


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