Question about 1986 Cadillac Eldorado

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Hi, My son was recently given a 1986 Eldorado. If

Hi, My son was recently given a 1986 Eldorado. If there is a special wrench needed to change the spark plugs on the vehicle? I was told that there was.

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  • swiffsangel
    swiffsangel Jun 25, 2012

    there is a tool that is a boot removal tool to remove the boot around the plug other than that it just a regular gm plug socket I just turned the boot left and right till it got loose and used my spark plug socket set to loosen the plug then turned it out by hand remember if to use thread lock on the plug



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I can't find any mention of a special tool for spark plugs in my Chilton manual for that year and they are usually pretty good at letting you know. There are 2 different sizes of plug wrench's and maybe that is what they are talking about. When you order the new plugs have a look at them before you leave and see if your wrench fits. Hope this helps.

Posted on May 12, 2010


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