4L80E Building Up Head (Data Log File Posted)
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Teching In
Joined: Jun 2013
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4L80E Building Up Head (Data Log File Posted) My 4L80E used to run no more than 150* unloaded and 190* loaded with about 10k. Now I'm running 185* unloaded and 210*+ loaded. Did a log looking at the TCC, dosen't look like its slipping to me but the TCC mode goes to Apply En, to Apply then Locked, as soon as throttle is released (no brake applied) it goes back to Off and starts over. This is both in normal mode and tow/haul "performance".
