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Thread: engine pinging off the line?

  1. #1
    SRTATEU's Avatar
    SRTATEU is offline Cadillac Owners Member
    Automobile(s): 95 Sedan Deville
    Join Date
    Oct 2007
    Location
    Western Burbs
    Age
    46
    Posts
    41

    engine pinging off the line?

    --------------------------------------------------------------------------------

    I have a 95 sedan deville with 119K miles. I bought from a retired vet. Car is impecable!!! I did my normal scheduled changes for my records oil, oil filter, pcv, air filter, fuel filter, seafoamed the motor. beforeing doing all this I heard the motoring pining off the start? I added premium gas and still heard the pinging? I added techtron additive to clean the injectors to a full tank of gas and still have the pinging?
    has anyone encountered this issue? if so what was the remedy? if any.

    any and all comments appreciated..

    Joel


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  3. #2
    HUF's Avatar
    HUF is offline Cadillac Owners Connoisseur
    Automobile(s): 1995 FWB 118,*** miles
    Join Date
    Dec 2005
    Location
    MA
    Age
    58
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    2,128

    Re: engine pinging off the line?

    It is most likely spark knock caused with faulty EGR system. First make sure two EGR tubes inside of the throttle body (under the blades) are clean, if they are not, use a piece of a coat hanger to rod the carbon out. Make sure all the vacuum tubes coming out of throttle body are intact.


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