I have a 2003 Sonoma 4.3l vin:x 35000 miles on it. And it's a 4x4. I have a hesitation Slight) most times. Put the major problem is When first started in a.M. It runs fine. But drive a couple of miles then stop go in store or anywhere and come out about 15 to 40 min. Later and start truck, back out of spot and depress accelerator and nothing. You can sure hope somebody knows Please Help put throttle to floor and truck just creeps. If you pump throttle it sometimes backfires through intake. After you get moving it's ok but still has a little hesitation. I Have changed fuel filter twice in a couple of months, removed masf and cleaned with masf cleaner, removed throttle plate body and cleaned with throttle cleaner, replaced dist. Cap and rotor. Had to dealer, it did same for them, and they can't find out why. Checked fuel pump pr. With key on = 60lbs, started engine had 55 lbs. Reved eng. Stayed at 55 lbs. Added water remover and fuel injector cleaner to tank, no help. Please Help Thanks. Ron
have the same problem?
Monday, August 6th, 2007 AT 6:24 PM