I have a 2000 Chevy Suburban with 130000 miles. At speeds over 30 or so @ 2000-2200 rpm it shudders like we are driving over a washboard road. We get no error codes and it only occurs during slight aceleration, as soon as the throttle is let off or pushed harder it stops immediately. I was told it may be the torque converter lock up so I serviced the tranny and added 2 doses of lucas additive to no avail. I have pulled the relay for the tc lock up & saw no change. Recently the exhaust started rattling so I checked it for loose hangers etc, moved the exhaust pipe back & forth as much as possible, rattle stopped & no vibration for a day then back to same vibration & rattle. I have read there is a service bulletin for an exhaust vibration but can't believe the exhaust could make the car shudder so violently, anyone have any ideas?
have the same problem?
Tuesday, March 29th, 2011 AT 2:38 AM