2004 4l80e hot trans on hills
Hi my 2004 k2500 transmission gets up to 230f on any grade locked in 3rd gear and not gear hunting. Why is it getting that hot on hills?
Forum Discussion
Dannyabear1 wrote:
I would never flush a transmission, that washes all of the junk to places it wouldn't be otherwise, probably blocking most of the cooler; just drain and refill,change filter, a couple of times if need be..
Exactly my thoughts. I can't count the tranny problem threads that start off with " flush", most of em 48RE related with a tuner :W
Drop pan, change filter, adjust bans if needed and drop PM rate 10K miles.
But since it just started up I'd also look at what ATF they used. Trannies are picky that way.
