99 sts stalling out
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Northstar Engines and System Technical Discussion Discussion, 99 sts stalling out in Cadillac Engine Discussion; my 99 sts is stalling outat the light and or when ever i stop not all the time but when ...
  1. #1
    stsatlbaby is offline Cadillac Owners Member
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    99 sts stalling out

    my 99 sts is stalling outat the light and or when ever i stop not all the time but when ever i drive it it happens i have had people tell me that is could be the EGR or a tune up or the crank postion sensor or the fuel filter how do i know what it is i dont want to spent all this money fixing all these things HELP!!!!!!!!


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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 99 sts stalling out

    Start by pulling the DTC's, then clean the TB and see if that helps.

  4. #3
    stsatlbaby is offline Cadillac Owners Member
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    Re: 99 sts stalling out

    what is the DTC's and i got the codes check and it was 3 EGV codes and 1 misfire code

  5. #4
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 99 sts stalling out

    DTC = Diagnostic Trouble Code

  6. #5
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: 99 sts stalling out

    Go down to the Tech Tips forums and search the sticky thread at the top entitled "How to pull codes..............."

    Practice. We need the letter and number for each code in order to begin to try to make a guess as to what's wrong.....

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