1977 GMC silverado, shortbox stepside. 454 engine w/(i assume) the original TH400 auto transmission. Mileage.A lot! I recently aquired this truck as a project. It's been sitting in a guys yard for a few years and hasn't been moved, but was running and driven there to be parked. Before I did anything I changed all the fluids (other than the transmission, silly me). I will be puting the carb back together today as I tore it apart on the weekend to rebuild it. It started and idled fine however when put into any gear the engine dies. It will start again but die when shifted. I thought perhaps the torque converter might be locked up but with more research I've found that the transmission isn't supposed to have a lockup torque converter. Any thoughts or ideas?
have the same problem?
Wednesday, June 20th, 2007 AT 9:50 AM