Chane rear spark plugs
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Cadillac Allante Forum Discussion, Chane rear spark plugs in Past Cadillac Vehicle Discussion; How do I change the rear spark plugs next to the firewall ? I am sure there is some trick ...
  1. #1
    earld is offline Cadillac Owners Member
    Automobile(s): 1990 Allante
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    Chane rear spark plugs

    How do I change the rear spark plugs next to the firewall ? I am sure there is some trick to it . Do I loosen the engine mounts or just what do I do? Thanks


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  3. #2
    carnut is offline Cadillac Owners Master
    Automobile(s): 1999 BMW 740 Il. 2005 Jag XK8, 1988 Mercedes Benz 300 SE
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    Re: Chane rear spark plugs

    Most folks do it while the car's on a hoist with a ratchet and extensions. I've done it with removing the upper dog bone engine mount, then loosening the front 2 engine cradle mounts and lowering the engine slightly. As the engine lowers it tilts forward. I used DELCO platinum plugs for a newer 4.9 V/8 Cadillac. Be aware you will more than likely damage the plug wires so have a set of DELCO wires available!

  4. #3
    earld is offline Cadillac Owners Member
    Automobile(s): 1990 Allante
    Join Date
    Oct 2013
    Location
    Hickory NC
    Age
    70
    Posts
    50
    Thread Starter

    Re: Chane rear spark plugs

    I'm changing them too . I don't know when they were last changed so may as well do it now.

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