engine runs smooth until warmed up, then it starts to miss. on 1999 Chevrolet Blazer

When care is warming up, it runs smooth on all cylinders. When warmed up one of the cylinders starts missing.

by in Livingston, MT on August 28, 2012
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2 answers
ANSWER by , August 29, 2012
these cars have inj spider issues also that can cause fuel issues but are covered 10yrs 200000k miles. has that been repl that yu know of.if not have it ck'd by your mech it sounds like you may have that problem by what you are saying
ANSWER by , August 29, 2012
GET A TUNE UP! YOU KNOW CAP,ROTOR,PLUGS&PLUG WIRES. SCANNER&SCOPE WILL FIND PROBLEM.