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Thread: 02 deville spark plug replacement

  1. #1
    townclown is offline Cadillac Owners Member
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    02 deville spark plug replacement

    Tried searching through the site for this and couldn't find it. Is there a thread out there that gives instructions on changing out plugs in an 02 deville? I popped the cover off the front bank today and could see them sitting down in the rubber tubes, but didn't want to do any damage so thought better of going any farther. Do those rubber tubes come out, do I have to pull the valve cover to get at them? Any tricks to this?


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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 02 deville spark plug replacement

    Cam cover stays in place. The boots come out. You were almost there.

  4. #3
    townclown is offline Cadillac Owners Member
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    Re: 02 deville spark plug replacement

    So I just yank the boot with a pair of pliers and that's it? No danger of ripping those boots apart or anything? Give them a twist or something as I yank them?

  5. #4
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 02 deville spark plug replacement

    I have yet to have to do plugs on a COP ignition, but I would treat them just like a spark plug wire boot and give them a twist.

  6. #5
    townclown is offline Cadillac Owners Member
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    Re: 02 deville spark plug replacement

    I'll let you know next weekend what happened...

  7. #6
    codewize's Avatar
    codewize is offline Cadillac Owners Master
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    Re: 02 deville spark plug replacement

    I don't know if it's necessary or not but the service manual says to use a spark plug boot puller to get those off.
    Ownership:
    91 Brougham d'Elegance 350
    95 Fleetwood Brougham
    01 Custom Deville DTS
    2011 CTS4 Luxury

    Memberships:
    National and regional Cadillac & LaSalle Club
    Proud Volunteer - Northstar Tuning Project
    Guinness World Records - Largest Cadillac Parade

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

  8. #7
    townclown is offline Cadillac Owners Member
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    Re: 02 deville spark plug replacement

    Hmm, they're kind of hollow mushroomed shaped... I'm not sure I have the clearance to get the boot puller by the top and down onto the stem. I'll give that the first shot tho.

  9. #8
    codewize's Avatar
    codewize is offline Cadillac Owners Master
    Automobile(s): 91 Brougham d'Elegance / 95 Fleetwood Broug/ 01 DTS / 11 CTS Lux
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    Re: 02 deville spark plug replacement

    Maybe it's a special one? I don't know.

    Quote Originally Posted by townclown View Post
    Hmm, they're kind of hollow mushroomed shaped... I'm not sure I have the clearance to get the boot puller by the top and down onto the stem. I'll give that the first shot tho.
    Ownership:
    91 Brougham d'Elegance 350
    95 Fleetwood Brougham
    01 Custom Deville DTS
    2011 CTS4 Luxury

    Memberships:
    National and regional Cadillac & LaSalle Club
    Proud Volunteer - Northstar Tuning Project
    Guinness World Records - Largest Cadillac Parade

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


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