Tcc lock up
- Thread starter 90hurst/oldsguy
- Start date
breaklight switch going bad? i assume you're driving it in the OD position, what happens when in D position, that should cut around any tc lockup.
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Out of honor for other techs I retract my comment about not knowing what to do. More likely if only GM trained he would only know the OEM build/repair regimen.
Any how give Power Proven a call, these guys are one of the best in Chicago area. Would be about 5 to 6 hour drive, but they will do you right. I did a good amount with them in early eighties.
Maybe call them first and explain current problem.
Any how give Power Proven a call, these guys are one of the best in Chicago area. Would be about 5 to 6 hour drive, but they will do you right. I did a good amount with them in early eighties.
Maybe call them first and explain current problem.
That would happen on my Mom's Oldsmobile. When I replaced the lock-up solenoid it was supposedly an 'improved' design. No trouble after that.
Maybe the high gear switch on the valve body? It only allows lock-up in high gear. On my T-350-C it would stay locked up until I dropped down into first gear. I ignored it, but it could have gotten worse.
The "bang" aka abrupt shift into or from gear to gear could be a case of malajusted TV Cable up at the carb. As for the TCC, is the electrical connection properly grounded? Correct amount of ATV and the correct kind of ATV for the application?
Nick
Nick
TCC should unhook the moment 3rd shift line pressure pressure reduced. More possible is builder put in an incorrect or the common op switch that closes at much lower line pressure. It should have disengaged with downshift.
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