Chevrolet Silverado / GMC Sierra. Service manual — part 884

Fig. 154: Torque Converter
Courtesy of GENERAL MOTORS CORP.

1. Remove the transmission fluid from torque converter (1).

2. Examine the transmission fluid for the following.

Evidence of foreign matter

Metal particles

Other contaminates

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

3. If the torque converter is damaged, replace the torque converter.

TORQUE CONVERTER END PLAY INSPECTION

Tools Required

J 43764 Torque Converter End Play Gauge. See Special Tools.

J 5959 Dial Indicator Clamp and Adjuster. See Special Tools.

J 7872 Magnetic Base Dial Indicator

Inspection

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 155: Measuring Torque Converter End Play
Courtesy of GENERAL MOTORS CORP.

1. Position the torque converter (3) on the work table so that the pump hub is facing up.

2. Install J 43764 (2) into the torque converter hub. See Special Tools.

3. Hold J 43764 (2) in the converter hub and rotate the center screw until J 43764 is locked

into the converter hub. See Special Tools. Do not over tighten J 43764 . See Special

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Tools.

4. Assemble the following tools and install the tools onto the torque converter as shown:

J 5959 (1). See Special Tools.

Extension rod (7)

Clamp (6)

J 7872 (4)

Adaptor rod (5)

5. Adjust the clamp (6) so that the dial indicator (1) firmly contacts the top of J 43764 (2).

See Special Tools.

6. Set the J 5959 (1) to read zero. See Special Tools.

7. Lift J 43764 (2) upward as far as possible. See Special Tools.

8. Read the J 5959 (1) to determine torque converter end play. See Special Tools.

9. Compare the measured end play with the torque converter end play specifications. Refer to

End Play Specifications .

10. If the measured torque converter end play exceeds the value listed, replace the torque

converter.

11. Remove the J tools from the converter housing.

TORQUE CONVERTER HOUSING WITH FLUID PUMP ASSEMBLY REMOVAL

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado