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4

Transmission fluid cannot be "too cold". There is one enemy of transmission fluid and that is heat. Having cooler temps in tranny fluid is a good thing. Your transmission isn't like your engine. The reason your engine needs to be "up to temp" and "temperature controlled" is to ensure proper combustion is occuring. The reason ...


3

I realize this answer isn't as complete as you want, but hopefully it can point you in the right direction. So it appears this transmission was used in most (if not all) Chevy and GM trucks from 92 on. Most (if not all) of those trucks were available with 4wd. I have a 97 suburban with 4wd. It does have the dash button shift, but I've heard it was ...


3

Pulse Width Modulation (PWM) can easily be achieved with two wires. All PWM does is hold one wire constant and rapidly pulse the other between 1k and 10k times a second. By changing the relation ship of how long the pulse is on versus how long the pulse is off the duty cycle is changed. Both the wires from the pressure control solenoid go to the PCM. The ...


1

I had the ECM tuned by a reputable tuning shop using the AutoCal device and the strange shifting behavior has disappeared. The ECM & transmission were calibrated, most of the torque management was removed and the transmission shifts much quicker now. Although, the 1-2 shift is a bit hard. I will try to return factory 1-2 accumulator springs as part of ...


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