2002 Chevy Silverado V8 Two Wheel Drive Automatic 63000 miles
Thought I had bad gas, never did it before, just in morning on cold 30% nights, morning start ups, engine would start, high idle at 1000 r.P.M, then idle down to700 or 600, after about a minute or so it will idle rough, somtimes idle down to 300 to 400 r.P.M, sometimes activating check engine light to flash but not stay on steady, after five minute warm up, it will clear up, runs and accelerates great, after sitting all day, a start up in the late afternoon somtimes but not all the time will do the same rough start up. Have put new vacum solinoid on and cleaned inside throttle body with cleaner still have problem. Been working on Chevys for 35 years having problem with this one, Hope I won't have to go to$ 100.00 per hour GM shop! Could it be throttle sensor or other sensor on throttle body? Jack Ski
have the same problem?
Wednesday, January 30th, 2008 AT 7:05 PM