Can a transmission lock-up a motor?
In a vehicle with an automatic transmission, the torque converter connects the power source to the load. Some of these devices are also equipped with a “lockup” mechanism which rigidly binds the engine to the transmission when their speeds are nearly equal, to avoid slippage and a resulting loss of efficiency.
What happens when the engine lock up on a GM transmission?
Many times it will seem as if the transmission has a 5th gear or extra over drive when the converter locks up since it will typically reduce engine speed by about 300 RPM. When GM installed these transmissions in a particular vehicle they had a few different ways to activate the lock up for the converter.
Where is the lock up plug on a Tran?
Its the plug on the left side of the tran case and goes to the lockup clutch in the. If that applies to your project and you just happen to have a TH with the lockup feature sitting on the floor of the garage here is how to get.
How does a lock up on a torque converter work?
The lock up function is often performed by an electrically controlled solenoid which operates a valve allowing transmission fluid to push the TC against the transmission housing. The ECU will often lock up the torque converter when the car reaches a particular speed and gear but usually only under low load conditions.
What should I do if my GM converter lock up?
NEVER run the vehicle in gear when supported only with a jack. Chock the drive wheels and apply the parking brake. In addition, some of the tests (test #11 and 12) require the transmission be opened and the valves are physically inspected. I do not recommend that you do this.
Many times it will seem as if the transmission has a 5th gear or extra over drive when the converter locks up since it will typically reduce engine speed by about 300 RPM. When GM installed these transmissions in a particular vehicle they had a few different ways to activate the lock up for the converter.
What should the lock up signal be on a torque converter?
Connect a 12v signal or 0v to the other terminal of the switch (12v if the LED turned on when TC locked or 0v if LED turned off when TC locked). This arrangement will allow the driver to select between the ECU controlled torque converter signal and a locked up setting.
NEVER run the vehicle in gear when supported only with a jack. Chock the drive wheels and apply the parking brake. In addition, some of the tests (test #11 and 12) require the transmission be opened and the valves are physically inspected. I do not recommend that you do this.
How does lock up work on a car?
This pulls the converter out of lock up to allow the car to easily accelerate back up to speed before the lock up re-engages. The entire lock up system can be installed by anyone with minimal mechanical skills. The internal components are all accessed by removal of the transmission pan and filter only.