Cylinder 1 misfire - 2002 DTS
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Cylinder 1 misfire - 2002 DTS in Past Cadillac Vehicle Discussion; what is the firing order for the 02 DTS? trying to find cylinder 1...
  1. #1
    caddy fever is offline Cadillac Owners Member
    Automobile(s): 02 Silver DTS , 00 Pear Eldorado ETC
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    Cylinder 1 misfire - 2002 DTS

    what is the firing order for the 02 DTS? trying to find cylinder 1

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Cylinder 1 misfire

    Bank 1 is the right (rear) bank: 1-3-5-7

    Bank 2 is the left (front) bank: 2-4-6-8

    There are several hoops to jump through in order to remove the right bank coil cassette. Cadillac Tech Tips and pictures/diagrams in my 2 albums

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    caddy fever is offline Cadillac Owners Member
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    Re: Cylinder 1 misfire - 2002 DTS

    thanks a million

  5. #4
    caddy fever is offline Cadillac Owners Member
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    Changed all plugs coil packs and boots and I'm still getting the misfire

  6. #5
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
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    Re: Cylinder 1 misfire - 2002 DTS

    Quote Originally Posted by caddy fever View Post
    Changed all plugs coil packs and boots and I'm still getting the misfire
    -------------------------
    check the fuel injector -

    with the engine running - use a stethoscope - or similar -
    and listen to the injector -
    there should be a clean - distinct "CLICK" each time the cylinder fires -

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

    what plugs?
    I hope you used OEM ACDelco or Denso -

    what ignition cassettes? new - used?

    still a #1 misfire?

    if yes - swap the coils -
    if the misfire goes to #8 -
    the coil is defective -

    if it stays at #1 - double check the plug and boot -
    if PERFECTLY clean - and no carbon arching on the boot -
    do a compression test on the rear cylinders -

  7. #6
    caddy fever is offline Cadillac Owners Member
    Automobile(s): 02 Silver DTS , 00 Pear Eldorado ETC
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    Will do a compression test .... I did use AC Delco plugs and new boots and swapped packs no aftermarket anything. I honestly believe that my catalytic converter is bad ... The car runs much smoothly but it puts...

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