Humming fuel pump
Thread Starter
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Joined: May 2007
Posts: 54
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Humming fuel pump
My 85 fuel pump is humming! I know (so teach it the words) smart a##.
I am not great with cars . fuel pump was just replaced.
took the gas lid off removed the rubber boot. I was wondering if I got a bad pump Again or what if anything I can try?
I am not great with cars . fuel pump was just replaced.
took the gas lid off removed the rubber boot. I was wondering if I got a bad pump Again or what if anything I can try?
Team Owner
Joined: Jul 2004
Posts: 28,362
Likes: 3,255
From: Hartford WI
Not sure what you mean. It SHOULD hum for a few seconds when you turn the engine on. Then it should stop. This pressurizes the fuel line and it stops so as not to drain the battery. After you start it, it should continue to pump.
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Joined: May 2007
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Instructor
Joined: Nov 2009
Posts: 162
Likes: 0
From: Houston Texas
The same thing happened with my 01 c240. Replaced the pump with a cheapie and bam humming constantly. I replace it again with a name brand pump and it was all fixed. Both new pumps, one hummed one didn't strange but lesson learned.
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