1994 STS - intake backfire and rough running
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Cadillac Seville / Cadillac Eldorado Forum Discussion, 1994 STS - intake backfire and rough running in Past Cadillac Vehicle Discussion; new here .. i have a 94 sts with a northstar the other day i went to start it and ...
  1. #1
    charles420 is offline Cadillac Owners Member
    Automobile(s): 1994 sts
    Join Date
    Aug 2012
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    1994 STS - intake backfire and rough running

    new here .. i have a 94 sts with a northstar the other day i went to start it and it pop with white smoke coming out of the hood ... after that the top of the moter started to tick/ sounds like a diesal at idle ....any ideal on where to start on fixing it before i sell it?


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  3. #2
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
    Automobile(s): 1997 Cadillac STS (BOSE w/AUX In, Massage Seats, URPAS, "Z")
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    Nov 2006
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    Re: 1994 STS - intake backfire and rough running

    Did you recently messed around with the spark plugs or the wires?

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