1987 Cadillac Deville No Fuel Preasure Im lost
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HT4100 4.1, 4.5, 4.9 Discussion, 1987 Cadillac Deville No Fuel Preasure Im lost in Cadillac Engine Technical Discussion; Hi, I have an 87 Deville Convertible. It won't start. With a little gas in the throttle body it will ...
  1. #1
    GCP4 is offline Cadillac Owners Member
    Automobile(s): 1984 & 1985 Cadillac Eldorado Biarritz Convertible, 1987 Cad
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    1987 Cadillac Deville No Fuel Preasure Im lost

    Hi, I have an 87 Deville Convertible. It won't start. With a little gas in the throttle body it will fire for a second. So we replaced the fuel pump still no luck. The fuel pump is running but no preasure. The oil preasure sending unit seems fine. I checked all the fuses and relays there fine. What am I missing????

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  3. #2
    awadecki is offline Cadillac Owners Enthusiast
    Automobile(s): 76 Eldo (54k), 76 Eldo (52k), 78 Eldo (9k), 85 Deville (43k)
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    Re: 1987 Cadillac Deville No Fuel Preasure Im lost

    Check the fuel pump relay. Might have an open in the circuit somewhere.

  4. #3
    cadillac_tech is offline Cadillac Owners Fanatic
    Automobile(s): 2008 SRX
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    Re: 1987 Cadillac Deville No Fuel Preasure Im lost

    Quote Originally Posted by GCP4 View Post
    The fuel pump is running but no preasure.
    Is that no pressure...or no pleasure?

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