After some research these 4l60e transmissions seem to be infamous for failure. Once it locks up you have a direct lock between the engine and transmission.
Coa 110310 3 265mm Maximum Performance Converter Torque Drive Lock Up Single Disk Billet Cover And Apply Plate 4l60e 4l65e 281mm Bolt Circle
Torque converter lock up 4l60e. The reason you cant feel it until lock up is because the fluid coupling masks the miss fire. Torque converter srl billet series 95 in. And the biggest cause of automatic transmission failure is heat. The main symptom of a tcc solenoid failure is the converter is not locking up. Lockup reduces slippage in the converter increasing fuel economy. Diameter 4l60e 4l65e lockup each.
Jim 2004 silverado 2500hd ls pro comp. When the converter is not locking up you will notice the engines rpms staying higher under load at highway speeds. For the converter clutch to apply two conditions must be met. 700r4 4l60e 30 spline transmission engine. 30 spline bolt pattern. 4l60e 4l65e automatic transmission lock up torque converter diameter.
Torque converter o ringgm 298mm lockup th 250 c3507004l60e so 23 1agm o 3v 734 acdelco 8630049 gm original equipment automatic transmission forward clutch turbine shaft seal. 10mm x 15 hub. The tcc system uses a solenoid operated valve to couple the engine flywheel to the output shaft of the transmission through the torque converter. The torque converter is basically out of the picture in lock up. Unit contains a lock up clutch. Torque converter specs stall.
4l60e torque convertor shudder. And heat is mostly generated by the torque converter in the unlocked state. The pwm allows the torque converter to slip and engage at different intervals whereas mine no longer has this and it locks up at 45 and 55 mph and stays locked in. 1250 bolt circle to bolt circle. More modern transmissions lockup the torque converter sooner and keep it locked under conditions that the 4l60e would unlock. 700r4 4l60e torque converter 1650 low stall heavy duty 30 spline wlockup 6 review s this street rage is a heavy duty brazed torque converter of 12 size.
Hay 97 1h28q more detail. In my experience the tranny guy who fixed mine put a pwm eliminator kit in mine which reverts the 4l60e back to the 700r4 in a sense. When your 4l60es tcc solenoid begins to fail there are a number of obvious signs. Fti performance srls0082 fti performance srl series billet lockup torque converters. Another symptom of a failed tcc solenoid is a fault code. Hays twister 34 race torque converter 1998 up gm 4l60e 4l65e 2800 3200 rpm stall not yet reviewed.
Gallery of Torque Converter Lock Up 4l60e
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