Do you need a tune for a stall converter?
Premium Member. I wouldn’t worry about the tune for such a low stall converter. It will be fine. More stall than that you’ll definately need a tune.
What causes a GM torque converter to lock up?
Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid, but this is not the only cause of this problem. General Motors has issued a few Technical Service Bulletins (TSBs) relating to this problem. There is also a specific diagnostic procedure to determine the exact cause of the TCC problem.
When does a bad torque converter cause a car to stall?
A frequently stalling engine is also indicative of a car having a major mechanical problem. When the engine is rotating at a faster rate compared to the transmission, the torque converter also acts as a torque multiplier.
How to test a torque converter without uninstalling it?
Remember to not release the brake pedal. With one foot on the brake pedal, press the accelerator all the way for 2-3 seconds with the other foot. Be careful not the exceed 5 seconds or the transmission could blow out.The stall speed is the RPM the engine maxes out at.
Can a 6000 rpm torque converter Flash up?
A normal 3000 RPM converter can flash up to around 5000 RPM once you have launched the car. It is a pretty complicated process, so I will keep it simple. A 6000 RPM converter that is behind a stock engine may not go to 6000 RPM because the engine won’t make enough torque to get up to that point because of the load converter.
Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid, but this is not the only cause of this problem. General Motors has issued a few Technical Service Bulletins (TSBs) relating to this problem. There is also a specific diagnostic procedure to determine the exact cause of the TCC problem.
What causes a car to stall when the torque converter fails?
Vincent Ciulla is a certified master automotive technician who has diagnosed and repaired light trucks, domestic and foreign cars, and diesel engines, for more than three decades. A common problem on many General Motors cars is the Torque Converter Clutch fails to release and causes the car to stall when it comes to a stop.
What is the purpose of the torque converter clutch?
The purpose of the Transmission Converter Clutch (TCC) feature is to eliminate the power loss of the torque converter stage when the vehicle is in a cruise mode. The TCC System uses a solenoid-operated valve to couple the engine flywheel to the output shaft of the transmission through the torque converter.
Can You unplug the solenoid on a GM converter?
Generally, if you unplug the TCC solenoid at the transmission and the symptoms go away, you have found the problem. But sometimes this can be misleading because you don’t know for sure if it’s a bad solenoid, dirt in the valve body or a bad signal from the ECM.