Question about 1996 Chevrolet Astro

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Van has poor pick up after short time of running

Ressntly replased fuel pump now after runing for 3-5 miles act like getting enougf gas. then after one minute starts a runs fine for the next 3-5 miles thens does it again

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  • klinecar24 May 21, 2009


    1. Yes, I replaced the filter when I changed the pump.

  • klinecar24 May 24, 2009


    1. Thank you very much. Because of your insight on the pump possibly being wired backwards, I checked that. I had to use a different harness so that made me think that was a possibility. However, that was not the problem. I found that the fuel connection between the pump and the main line was not right. Also, the filter for the pump was covering the other tube that comes down into the tank. I adjusted them both, put it all back together and now everything is running fine. Thank you for your advice.

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Did you replace the fuel filter as well?

Posted on May 20, 2009

  • 1 more comment 
  • Bob Taylor
    Bob Taylor May 21, 2009

    There is a Schrader valve on the fuel rail somewhere to bleed air out of the system. it can also be used to see if you have pressure. There is an inertia cut-off switch too, but I'm not familiar enough with this model to tell you where it is. It's probably talked about in the owners manual. Can you hear the pump running when the key is in run position? If you wire a DC motor backwards, it will run backwards, just a thought... Black wires cannot be assumed to be grounds, just as an example. Use a meter to make sure positive on the vehicle is positive on the pump. Good Luck!

  • Bob Taylor
    Bob Taylor May 24, 2009

    Great! Usually it's something simple, but sometimes can be quite hard to find. I have always used the method of asking the question "what changed"? Many times if we go through and investigate everything that changed as a direct or indirect result of the work performed, this issue will be located as you re-trace the steps. I believe you're giving me a bit too much credit here, as my guess was wrong. But I'm happy that I was able to alter your thinking so you knew roughly where to look. The fact that you were able to troubleshoot the improper installation should make you happy. You did that on your own! Congrats, and I'm happy your van is working properly now. Additionally, your confidence is lifted a bit for next time. Bob Taylor

  • Bob Taylor
    Bob Taylor May 24, 2009

    Comment posted on May 24, 2009


    1. Thank you very much. Because of your insight on the pump possibly being wired backwards, I checked that. I had to use a different harness so that made me think that was a possibility. However, that was not the problem. I found that the fuel connection between the pump and the main line was not right. Also, the filter for the pump was covering the other tube that comes down into the tank. I adjusted them both, put it all back together and now everything is running fine. Thank you for your advice.

    Also, Thanks for the positive feedback! a00gha

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