Removal Procedure
- Remove the engine air cleaner. Refer to 
Air Cleaner Assembly Replacement 
 in Engine Controls - 4.3L or to 
Air Cleaner Assembly Replacement 
 in Engine Controls - 4.8L, 3.3L and 6.0L.
 
- Remove the transmission fluid level indicator from the fluid fill tube.
 
- Remove the bolt and the nut securing the
transmission fluid fill tube to the engine.
 
- Remove the engine cover. Refer to 
Engine Cover Replacement 
in Interior Trim.
 
- Remove the nut securing the transmission
fluid fill tube to the transmission stud.
 
- Remove the upper fill tube from the vehicle.
 
- Raise the vehicle. Refer to 
Lifting and Jacking the Vehicle 
 in General Information.
 
- Support the vehicle with safety stands.
 
- Remove any dirt from the transmission where the fluid fill tube enters
the transmission case.
 
- Remove the drain plug from the transmission. Drain the fluid into an approved
container.
 
- Remove the transmission fluid fill tube from the transmission. Pull the
tube upward from the transmission.
 
- Remove the transmission fill tube seal.
 
- Clean the metal parts using solvent. Do not allow the solvent to enter
the transmission.
 
- Air dry the parts.
 
Installation Procedure
- Install a new oil level indicator tube seal
into the transmission case.
 
- Install the bottom of oil level indicator tube into the seal.
 
- Remove the safety stands.
 
- Lower the vehicle.
 
- Install the upper fill tube to the vehicle.
 
Notice: Refer to Fastener Notice in the Preface section.
-  Install the bolt and the nut securing the oil level indicator tube brackets
to the engine.
 
Tighten
|     •  | Tighten the bolt to 47 N·m (35 lb ft). | 
 
|     •  | Tighten the nut to 25 N·m (18 lb ft). | 
 
- Install the nut securing the oil level indicator tube to the transmission
stud.
 
Tighten
Tighten the nut to 25 N·m (18 lb ft).
- Install the air cleaner. Refer to 
Air Cleaner Assembly Replacement 
 in Engine Controls - 4.3L or
to  or to 
Air Cleaner Assembly Replacement 
 in Engine Controls - 4.8L,
3.3L and 6.0L.
 
- Install the engine cover. Refer to 
Engine Cover Replacement 
in Interior Trim.
 
- Fill the transmission fluid to the proper level. Refer to 
Transmission Fluid Check 
.