700r4 lock up question?
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
700r4 lock up question?
1989, stock, 700r4
i done so much research, that I have confused myself even more
is my transmission computer controlled?
I want to have my transmission lock up in 3 and 4th gear automatically. I think if I use an electrical switch, don’t I have to manually turn it off when I slow down or stop. I do not want to do that
recommendations?
i done so much research, that I have confused myself even more
is my transmission computer controlled?
I want to have my transmission lock up in 3 and 4th gear automatically. I think if I use an electrical switch, don’t I have to manually turn it off when I slow down or stop. I do not want to do that
recommendations?
Melting Slicks
Joined: Jan 2014
Posts: 2,192
Likes: 381
From: Lunenburg MA
Are you asking about the torque converter or the transmission? The ECM controls the torque converter and locks it around 40MPH. The trans is not controlled by the ECM. There is a good description here: https://mechanicbase.com/transmissio...-transmission/
Safety Car
Joined: Jul 2003
Posts: 3,500
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From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
Is there any switches on the brake pedal that has anything to do with TCC lock up or release? If so, I don’t understand what locks and unlocks TCC Does the ECU work in conjunction with a vacuum release switch on the brake pedal?
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
Thank you very much for the great information. I just took car for a spin. This time I hooked up MT-2500 snap on scanner. The indicator light that shows TCC lock up did not light. It just had the code P1 in the digital read out for TCC I’m not sure what that means, but iam researching it. Never used it before today.
quick question. When I am doing about 60 and let off gas pedal completely, should the car feel like it is coasting or feel like it is starting to slow down such as a type of engine breaking?
quick question. When I am doing about 60 and let off gas pedal completely, should the car feel like it is coasting or feel like it is starting to slow down such as a type of engine breaking?
