Hi, I recently bought a 2000 Silverado 2500, 6.0L automatic with 92,000mi. After purchasing the truck, I drove it about 30 miles and it started to shift hard. I shut the truck off and it resolved. After another period of time it began again always resolving either by shutting the truck off or disconnecting the battery. The dealership has replaced the TCC sol and flushed the trans and replaced the filter. They keep finding a fault code which upon deleting it, resolves the problem. Despite the correction, it still continues to shift hard after about 30 miles of hwy driving. When it is shifting hard my RPM's seem to increase about 2000-3000. The dealership is stumped or they just don't want to fix a major problem...Any suggestions?
p.s. I put 285/75 r16 tires on...could that be the problem?
p.s. I put 285/75 r16 tires on...could that be the problem?
Aug 4, 2007 at 5:36 PM