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Fuel pump whine

This is a discussion on Fuel pump whine within the General Help forums, part of the LSx Technical Help Section category; Hi Guys, My 2000 WS-6 Firebird with 70,000miles has run like a top up until this morning when I got ...

  1. #1
    Junior Member
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    Red
    2000 ws6

    Fuel pump whine



    Hi Guys,
    My 2000 WS-6 Firebird with 70,000miles has run like a top up until this morning when I got on it. The engine sputtered and bucked like I had run out of gas. (it had a have a tank) When I pulled into my workplace I could here a high pitched whine from the rear of the car. I assume it is the fuel pump, but would a plugged fuel filter cause the fuel pump to whine, or is it just plain the fuel pump getting ready to sh%$ the bed. I know from experiance that most things don't fix themselves. Any suggestions.

  2. #2
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    Quick Silver
    2002 Z06

    Your on the right track by changing the fuel filter it can't hurt anything.

    I took a month long cross country trip in my 98 forumla several years back and I had to put gas in it at some really nasty gas stations sometimes.

    On my way home my gas guage stopped working right and my pump started whining. I was flipping out hoping I did not get stranded.

    Made it home, changed the fuel filter and 2 tanks of gas from Quick Trip later, the guage works fine and the pump does not whine. Over 200k now still on stock pump

  3. #3
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    red black
    98Z28

    Mine started the whine(sounded like a plane flying over) at 120 k . And that was when I started using the Lucas ucl and it quited it quite a bit at 216k now and am about to swap to the TS-W3 stuff Sarge was talking about. Still gets noisy at 1/4 tank or less but not like it was. And never any pressure problems, still smokin them pony's. Was adding about 5 oz of Lucas every other tankful. I like the idea of 2oz of TS-W3 every 10 gal. Can't hurt and should be as good or better than the Lucas

  4. #4
    Member Pete Rock98's Avatar
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    Black
    1998 z28

    If the pump is making a high pitched whine it's over heating .I had the same problem on my 98 shortly after this I installed a new pump.Change the filter and throw a bottle of techtron or lucas in there see what happens .

  5. #5
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    Red
    2000 ws6

    fuel pump whine

    Thanks guys, it makes perfect sence. If I read you right, your saying, the back pressure from a dirty fuel filter would cause the pump to get hot and whine. It only does it after a few minutes of driving. It is fine on cold start up's.
    I will also try the Lucas fuel system treatment.

  6. #6
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    Red
    2000 ws6

    thanks!

    Hi guys,
    I changed the fuel filter today. The gas out of the filter looked like chocolate milk! There is no more fuel pump whine and the car is running like a top.
    You guys saved me hundreds of dollars. Thanks a ton.

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