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View Full Version : TCC lock up issues 94LT1/460LE



Greezmonkey
02-03-2021, 04:17 AM
I have transplanted a 94 Buick Roadmaster LT1 with the 4L60E into my 93 Saturn wagon and have just over 6000 miles on it so far as my daily driver. Drivability is good and a blast! I have had an issue with the TCC randomly kicking out while cruising to work. I have read on this info source people going to the misfire table and increasing the number to correct this problem. I'm using TunerProRT for bin changes as I fine tune the swap. I have not been able to find a table that addresses this issue. I have found a scaler, 351f TCC_PWD_DC_count_increment. Would this be something I should be looking at with my 94 system? Thanks for any assistance.

In-Tech
02-03-2021, 02:47 PM
Hello,
99% of the time it is an intermittent bad coolant temp sensor and/or the connector. If you can datalog fast enough when it happens, then scroll through the log step by step, you will see the temp read -39c for a few ms and that kicks it out of lockup.