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Old 04-04-2023, 12:05 AM   #1
Chutzpah

 
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Drives: Wild Cherry LT1
Join Date: Dec 2016
Location: Massachusetts
Posts: 1,973
10L80 / 10L90 Correct Fill Temp

So, I have, and have had for a while now, some banging / clanging when going between reverse and drive quickly and between drive and park / vice versa. There’s also a delayed slack type of transition feel when this happens… which seems much more prevalent when the the transmission is under ~ 140 (what the dash reads). Otherwise, the car shifts great.

I plan to check the fluid level once the fill adapter and the fluid arrives (this week). What I really need to know is what temp should the fluid be when checking the level? I watched YouTube video and it said 170+, which seems pretty high. Going by the dash, the highest temp I’ve seen is around 148F. I plan on using a laser gun pointed at the pan. Is 170F the correct #?

If the fluid is fine, off to a dreaded dealer visit I go

Thanks..

Last edited by Chutzpah; 04-08-2023 at 09:15 AM.
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