Is my fuel pump bad??
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Northstar Engines and System Technical Discussion Discussion, Is my fuel pump bad?? in Cadillac Engine Technical Discussion; OK here is the scoop. I started my car got half a block and my car was stuttering and sputtering ...
  1. #1
    upnout is offline Cadillac Owners Member
    Automobile(s): 1996 SLS
    Join Date
    Apr 2010
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    Is my fuel pump bad??

    OK here is the scoop. I started my car got half a block and my car was stuttering and sputtering worse than Daffy Duck. My first thoughts were Thufferin Thufataz!....hahaha....then it died a couple of times on my way back to the house. The throttle did nothing pushed to the floor so I pumped it and got it to give me a little acceleration....I poured gas in the TB at the house and WAM! it started up like a champ and died 3 seconds later. Is my Fuel pump shot????

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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
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    Re: Is my fuel pump bad??

    Sounds like a fuel pump, but the only way to be sure is to put a fuel pressure gauge on the fuel service port on the fuel rail and see what kind of fuel pressure you have. Should be around 45 psi.

  4. #3
    upnout is offline Cadillac Owners Member
    Automobile(s): 1996 SLS
    Join Date
    Apr 2010
    Posts
    3

    Re: Is my fuel pump bad??

    I already have the tank out. I'll probably snag one from a junk yard for eighty bucks or less. I'm in a tight squeeze. I failed to mention that I do hear the pump engage except it is a low rumble or growl sound and I've heard and read that is the sign of a bad pump or pump going bad.

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