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Thread: Feels like downshifting while driving in 5th

  1. #31
    LS Swapper Josh's Avatar
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    certainly sounds like you need a new fuel pump to me.

    Supercharged 5.3L LS4 + Porsche 6spd
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    I am not affiliated with Delorean Midwest in anyway.

  2. #32
    LS1 DMC Nicholas R's Avatar
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    Quote Originally Posted by Josh View Post
    certainly sounds like you need a new fuel pump to me.
    I agree. The pump died while driving; how much more evidence is needed?

    Either replace it, or keep a spare on hand and be ready to change it on the side of the road.

    I've limped around on fuel pumps that overheated, shut down, then cooled and ran again, but in the end they still always end up needing replaced.

  3. #33
    Senior Member mr_maxime's Avatar
    Join Date:  Mar 2015

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    I'm replacing my pump now and the instructions say to clean the tank. There is a note that if the bottom feels "gritty" then it is not clean. Ive cleaned a good but, there wasn't all that much junk however the bottom feels gritty. It seems like this is the texture of the tank though.

    https://imgur.com/blXzEcK

  4. #34
    President, DeLorean Industries
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    Texture is normal. That is getting cleaner but needs some work. Get the little rust spots and minor debris out. The new pump pick up will clog with those contaminates.
    www.deloreanindustries.com Every Detail Matters

  5. #35
    Senior Member mr_maxime's Avatar
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    I'm getting a shop vac to vacuum out the bits. I've been using a white rag and acetone, and the rag wasn't getting dirtier.

  6. #36
    Senior Member mr_maxime's Avatar
    Join Date:  Mar 2015

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    Fuel pump installed

    I've got everything hooked up, but the return line is a bit kinked. I routed the supply line differently than the directions because I couldn't route it as instructed without a massive kink.

    https://imgur.com/a/r6iS0

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