Question about 1992 Jeep Wrangler

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Fuel pump humming - 1992 Jeep Wrangler

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Hi Bill,

I've got a 91 Wrangler. I'm not sure what your problem is though.

I assume you have the 4.0l fuel injected straight six.

Is the fuel pump on all the time?

Does the car run?

Could you comment back with a bit more detail about the problem?

Thanks
Mike

Posted on Oct 04, 2009

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Pump running is normal if it is humming it means it's on if it is on it could be a waek pump but is not supposed to hu, all thie time

Posted on Oct 05, 2009

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Time to change the fuel pump , the humming usualy means the internals of the pump are worn.

Posted on Oct 04, 2009

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If the engine is running and you here this you are A-OK, just the pump running. If the engine is off and you hear this continuely your fuel pump relay is stuck, remove the battery ground and replace this relay.
I hope this may have helped,
Tom

Posted on Oct 04, 2009

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