I hope someone here is keen on transmissions cause I can't find an answer elsewhere ... So I just rebuilt my 4.3 V6 in my 92 chevy Silverado & it's running great, but my transmission ( automatic with O/D ) seems to be acting up...here's the symptoms.. it shifts fine around town but get on the hwy and it won't shift into the O/D gear, and the tach just stays revving at around 2000 RPM from about 45mph up to at least 70.. and i hear a bit of a rattling sound during this ? I'm sure I need to change the fluid and filter but does this sound like the torque converter has crapped out as well... i had it rebuilt back in 04 but honestly don't know if they replaced the torque converter and the old transmission had basically cooked itself from the inside so the fluid if any was also in that converter. any insight would be helpful. Thanks in advance
