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Chevrolet Silverado / GMC Sierra. Manual - part 1103
Fig. 296: Identifying Case Fluid Passages
Courtesy of GENERAL MOTORS CORP.
2. Using compressed air, blow into all of the case fluid passages (3, 7, 8, 11, 16, 18, 26, 29,
37, 45) to ensure that all case fluid passages are clear of any obstruction.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Fig. 297: Inspecting Case Assembly Components For Damage
Courtesy of GENERAL MOTORS CORP.
3. Inspect the 2-4 servo bore, the 3rd accumulator retainer and ball assembly (40), the orifice
cup plug (11) in the servo bore, and the 2nd apply piston pin bore for any of the following
conditions:
Porosity
Burrs
Debris
Any other damage
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Fig. 298: Locating Orifice Cup Plug
Courtesy of GENERAL MOTORS CORP.
4. Inspect the 3-4 accumulator bore and the orifice cup plug (38) for any of the following
conditions:
Porosity
Burrs
Blockage
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Any other damage
5. Inspect all bolt holes for thread damage. Use heli-coil to repair damaged threads.
6. Inspect the cooler connectors for damage and proper torque.
Specification: Cooler connector torque should be 38 N.m (28 lb ft)
3RD ACCUMULATOR RETAINER WITH BALL ASSEMBLY LEAK CHECK
Tools Required
J 29714-A Servo Cover Depressor. See Special Tools.
Check
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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