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TORQUE CONVERTER CLUTCH SHUDDER Torque Converter Clutch Shudder Converter clutch valve stuck or assembled backward Transmission Fluid Pressure Contamination Damaged seals Solenoid Screen Blocked TCC Solenoid Valve (Part Internal damage Engine Speed Sensor Internal damage Engine Coolant Temperature Internal damage Automatic Transmission Internal damage Brake Switch Internal damage TCM Internal damage TCC PWM Solenoid (Part Internal damage Checks Causes Miscellaneous Low oil presure Engine not tuned properly Contaminated transmission oil Oil Filter (72) Crack in filter body Flash restricting filter neck O-ring seal (71) cut or damaged Torque Converter Assembly Internal damage Broken weld or missing weight Oil Pump Assembly (4) Converter clutch valve (224) stuck Restricted oil passage Input Housing and Shaft Turbin shaft O-ring (618) cut or damaged
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
NO TORQUE CONVERTER CLUTCH RELEASE No TCC Release TORQUE CONVERTER CLUTCH SLIP - 100 RPM SLIP TCC Slip (100 RPM) TORQUE CONVERTER CLUTCH SLIP WITH STALL/STUMBLE TCC Slip with Stall/Stumble Turbin shaft retainer and ball assembly (617) restricted Checks Causes TCC Solenoid Valve (Part External ground Clogged exhaust orifice Converter (1) Internal damage Valve Body Assembly (60) The converter clutch apply valve is stuck in the apply position The converter clutch valve is stuck PCM/TCM External ground Checks Causes Valve Body Assembly (60) TCC/PWM solenoid leaks Regulator apply valve or converter clutch shift valve Oil Pump Assembly (4) Stator shaft bushings worn, due to scratched turbine shaft TCC apply valve is stuck open TCC solenoid leaking Input Housing and Turbine Scratched journal on turbine shaft Turbine shaft O-ring cut Turbine shaft hole not drilled to full depth Checks Causes TCC Apply Valve (Part of Stuck open
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
TORQUE CONVERTER CLUTCH INTERMITTENT - OK COLD/SLIPS HOT Intermittent TCC OK Cold/Slips Hot NO FOURTH GEAR, OR SLIPS IN FOURTH GEAR No 4th or Slipping 4th SLIP/FLARE IN ANY GEAR Slip/Flare in any Gear NO THIRD GEAR No 3rd DRIVES IN NEUTRAL Drives in Neutral Checks Causes TCC PWM Solenoid (396) Leaks Sticking valve Converter Clutch Shift Sticking valve Checks Causes Checkball #2, 4, 8 or 12 Valve body checkball in wrong location or an additional Orificed Cup Plug (240) Not fully pressed into pump cover. Refer to Oil Pump Stator Checks Causes Pump Slide Spring (245) Omitted, weak or broken Checks Causes Orificed Cup Plug (698) Missing or blown out Checks Causes Forward Clutch (446-451) The clutch does not release Manual Valve Link (89) Disconnected
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
SECOND GEAR START Second Gear Start NO PARK No Park Case (103) The face is not flat Internal leakage exists Checks Causes Signal Noise on Vehicle Chassis vibrations, incorrect harness routing, owner installed Diagnostic Trouble Code Electrical or mechanical 1-2 Shift Solenoid Valve (367) Sediment in the valve body may cause improper Leaking Actuator Feed Spacer plate (48), spacer plate gaskets (47 or 52), control Blocked or restricted Valve Trapped sediment or metal particles. Stuck 1-2 Shift Valve (366) Trapped sediment or metal particles. Binding shift valve or worn valve body bore. TFP manual valve position TFP manual valve position switch (69) erratic operation. Checks Causes Parking Lock Actuator Actuator rod assembly bent or damaged Actuator rod spring binding or improperly crimped Actuator rod not attached to inside detent lever Parking lock bracket damaged or not torqued properly Inside detent lever not torqued properly Parking pawl binding or damaged
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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