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Discussion Starter · #1 ·
I have been having horrible vibrations from under the trunk area, so bad i cant even drive the thing. so i took a peek and it looked like one of my hose clamps on top of the pump was hitting the underside of the trunk. i dropped the tank just to move the clamp so it was out of the way, and the vibration is still there! nothing is hitting anywhere back there. question is, can a fuel pump vibrate and cause this? the car is not holding pressure after shutting the car off and from the diagnosis i used on gnttype.org it led to bad fuel pump check valve (not holding pressure) can this cause vibrating or am i missing something?
 

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so, does putting your hand on the fuel tank bottom allow you to feel the vibration? With the engine running, of course.
 

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The fuel pump can be a little noisy. But it's hard to imagine one being so bad that you can't drive the car. Tailpipe hitting the rear springs would be much more likely.
 

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Discussion Starter · #4 ·
you can feel it from both the tank and through the trunk while running. definately not the exhaust, ive checked that many times since this has been happening
 

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guess it's time for a new pump...:)

I had one so loud that I could not drive the car...but, I felt very little from it. It was only a few weeks old.
 

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Discussion Starter · #6 ·
thanks guys, it has to be the pump. I just didnt know they could make noises like that....
 
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