Rough and backfires
September 27th, 2016, 8:31 AM
#1
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Rough and backfires
Sometimes lately when I start my 1998 Chevy 2500 after it's been sitting either overnight or for a part of the day, it runs real rough and will even backfire, and then after a few minutes it runs perfect. Any ideas why?
September 28th, 2016, 2:45 AM
#2
CF Monarch
I would do a fuel pressure check when doing a cold start. The fuel might be bleeding part into the tank when sitting. It could be the check valve in the fuel pump assembly.