See Figures 1, 2 and 3
It is very important to maintain the proper fluid level in an automatic transmission. If the level is either too high or too low, poor shifting operation and internal damage are likely to occur. For this reason a regular check of the fluid level is essential.
- Drive the vehicle for 15-20 minutes to allow the transmission to reach operating temperature.
- Park the truck on a level surface, apply the parking brake and leave the engine idling. Shift the transmission and engage each gear, then place the gear selector in P (PARK).
- Wipe away any dirt in the areas of the transmission dipstick to prevent it from falling into the filler tube. Withdraw the dipstick, wipe it with a clean, lint-free rag and reinsert it until it seats.
- Withdraw the dipstick and note the fluid level. It should be between the upper (FULL) mark and the lower (ADD) mark.
- If the level is below the lower mark, use a funnel and add fluid in small quantities through the dipstick filler neck. Keep the engine running while adding fluid and check the level after each small amount. Do not overfill.
DRAIN AND REFILL
See Figures 4, 5, 6, 7 and 8
- Raise the truck and support on jackstands.
- Place a drain pan under the transmission.
- Loosen the pan attaching bolts and drain the fluid from the transmission.
- When the fluid has drained to the level of the pan flange, remove the remaining pan bolts working from the rear and both sides of the pan to allow it to drop and drain slowly.
- When all of the fluid has drained, remove the pan and clean it thoroughly. Discard the pan gasket.
- Place a new gasket on the pan, and install the pan on the transmission. Tighten the attaching bolts to 12-16 ft. lbs. (16-22 Nm).
- Add three quarts of fluid to the transmission through the filler tube.
- Lower the vehicle. Start the engine and move the gear selector through shift pattern. Allow the engine to reach normal operating temperature.
- Check the transmission fluid. Add fluid, if necessary, to maintain correct level.