i have a 1997 chev pickup s10 it some times chokes and backfires wat u think it is?
Mar 16, 2011 at 5:40 PM
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JDL
CAR REPAIR CONTRIBUTOR
16,098 POSTS
Could be several issues. How long since a tune-up? Ignition timing isn't adjustable,but you do have a timing chain. I can't tell much without testing, spark--fuel--compression.