Accessing Spark Plugs on HT4100 - 1984 Cadillac Coupe DeVille
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HT4100 4.1, 4.5, 4.9 Discussion, Accessing Spark Plugs on HT4100 - 1984 Cadillac Coupe DeVille in Cadillac Engine Technical Discussion; I am having a bit of a nightmare and could use some input. How do I access the spark plugs, ...
  1. #1
    jrkahrer is offline Cadillac Owners Member
    Automobile(s): 1984 Cadillac Coupe De'Ville
    Join Date
    Nov 2013
    Posts
    1

    Accessing Spark Plugs on HT4100 - 1984 Cadillac Coupe DeVille

    I am having a bit of a nightmare and could use some input. How do I access the spark plugs, to change them out with new, on the passenger side of the engine - WITHOUT REMOVING THE A/C SYSTEM? This is really urgent since I have been out of work for 3 months and have to travel 1,000 miles to begin a new job in less than 10 days and can't afford a mechanic right now. I was once told to remove the wheel well - but that appears to be a much more daunting task.

    Merry Christmas All!

    Jeff

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  3. #2
    cadillac_al is offline Cadillac Owners Connoisseur
    Automobile(s): Cadillac 78 Seville, 78 Coupe de Ville, 92 Sedan de Ville
    Join Date
    Feb 2007
    Location
    Maine
    Age
    52
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    Re: Accessing Spark Plugs on HT4100 - 1984 Cadillac Coupe DeVille

    There is always a way. A spark plug socket with or without a short extension. Some spark plug sockets have a hex on the end to put a wrench on for real tight places. Just imagine if the engine was in there sideways.

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