Quote:
Originally Posted by orange4boy
Exactly the opposite is true. The TCC lockup reduces heat build up in an auto transmission. Most of the heat generated is from fluid friction in the TC. Lock it up and the TC is disabled, eliminating all that fluid friction.
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Excellent observation! This makes perfect sense (and is a relief). When you hear of overheating transmissions, it's generally from pulling a hill or trailer/load -- the TC unlocks and the torque is, well, converted (into heat).
ATF looks to still be under pressure to activate the lockup piston, but the pressure is designed to operate at extended periods (highway cruise). My guess is that driveability / power demand is quick to disable it.
Formula -- good point as well. I may expose a portion of the ATF fins in the rad block to prevent abnormal heat.
I'm wondering if there's a quick way to monitor ATF temps -- like a sensor on the dipstick or something...
If this works, it will solve a long-time issue of cable adjustment mishaps and ECUs working against me
RH77