Fluid Filter - A/T: Service and Repair

REMOVAL PROCEDURE





1. Raise the vehicle. Support the vehicle.
2. Place an index mark (reference mark) (1) on the propeller shaft pinion flange and the front differential pinion flange of the transfer case to front differential propeller shaft (four-wheel drive models).

IMPORTANT: Removal of the propeller shaft from the transfer case will result in fluid loss in four-wheel drive models.

3. Remove the four nuts and the four bolts from the front differential pinion flange (four-wheel drive models).
4. Separate the pinion flange yoke from the front differential pinion flange (four-wheel drive models).
5. Position and support the transfer case to the front differential propeller shaft away from the transmission fluid pan.





6. Place a drain pan or suitable container under the transmission drain plug (1).
7. Remove the drain plug in order to allow the transmission fluid pan (2) to drain.





8. Remove the fourteen transmission fluid pan bolts from the transmission fluid pan.
9. Remove the transmission fluid pan and the gasket from the transmission.
10. Remove the four fluid pipes in the following order: 7, 6, 4 and then 8.
11. Remove the following items from the valve body:
^ The six bolts (1)
^ The fluid filter screen (2)
^ The fluid filter gasket
^ The fluid filter spacer
^ The fluid filter spacer gasket

12. Clean the fluid filter screen with solvent and air dry.

IMPORTANT: A small amount of clutch material in the bottom of the transmission fluid pan is a normal condition and is consistent with normal transmission wear. The bottom of the fluid pan is equipped with a magnet that will collect minute metal filings. However, if large amounts of clutch material, metal shavings or other foreign matter are present, transmission disassembly and inspection is indicated.

13. Clean the transmission fluid pan with solvent and air dry.
14. Clean the fluid pan magnets with solvent and air dry.
15. Clean the transmission fluid pan.
16. Clean the fluid filter screen gasket mating surfaces
17. Inspect the fluid filter screen for tears or other damage. Replace as necessary.

INSTALLATION PROCEDURE





1. Install a new fluid filter screen gasket and fluid filter screen (2) to the valve body.

NOTICE: Refer to Fastener Notice in Service Precautions.

2. Secure the fluid filter screen (2) to the valve body with the six bolts (1).
^ Tighten the fluid filter screen bolts to 5 Nm (44 inch lbs.).
3. Install the four fluid pipes in the following order: 8, 4, 6 and then 7.

4. Install the new transmission fluid pan gasket and the transmission fluid pan to the transmission.

IMPORTANT: Ensure the filler tube is properly connected when installing the transmission pan.

5. Secure the transmission fluid pan with the fourteen bolts.
^ Tighten the transmission fluid pan bolts to 5 Nm (44 inch lbs.).





6. Install the transmission drain plug (1) into the transmission.
^ Tighten the transmission drain plug to 17 Nm (13 ft. lbs.).

7. Install the propeller shaft into the vehicle aligning the index marks made during the front propeller shaft removal (four-wheel drive models).
8. Secure the front propeller shaft with four bolts and four nuts.
^ Tighten the front propeller shaft bolts and nuts to 50 Nm (37 ft. lbs.).

9. Lower the vehicle.





10. Refill the transmission as necessary using the following steps:
10.1. Place the vehicle on a level surface.
10.2. Remove the fluid level indicator.
10.3. Add approximate 1.5 liters (1.6 quarts) of Dexron III automatic transmission fluid GM P/N 12346143, or the equivalent, into the fluid filler tube.
10.4. Install the fluid level indicator into the fluid filler tube.
10.5. Apply the parking brake and block the vehicle wheels.
10.6. With the selector lever in the PARK position, start the engine. DO NOT race the engine.
10.7. Run the engine at idle speed.
10.8. Move the selector lever through each range and return the selector lever to the PARK position.
10.9. While the engine is running at idle remove the fluid level indicator from the filler tube and wipe the indicator off.
10.10. Reinsert the fluid level indicator into the filler tube making sure it is seated in its original position.
10.11. Remove the indicator and check the fluid level. The level should be between the FULL HOT (2) and the LOW HOT (3) marks. If the level is below the LOW HOT mark, add fluid to bring the level to the FULL HOT mark. Bringing the fluid level from the LOW HOT mark to the FULL HOT mark requires 0.3 liters (0.3 quarts) of fluid. Use Dexron III automatic transmission fluid GM P/N 12346143, or the equivalent.
10.12. Conduct a road test and check the transmission level.