#3 cyl misfires at cruise. also cyl's #4,5,6,8. # 1,2&7 do not.#3 does the most. I drove the truck with a timing lite on #3 and I am losing spark .Under load it fires, if you let off to cruise then we get an intermittent miss. I could make the timing lite ...

FIX posted 2/2/2000

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