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  1. 1990 4.5l misfire e49 and low compression reading

    HT4100 4.1, 4.5, 4.9
    New to the forum and looking to get some info and opinions on a problem I am having. I will give you guys a basic run down as detailed as possible and if I miss anything or you guys need anything let me know please. 1990 Cadillac Coupe Deville Just hit 99k original miles I bought the car from...