TrailBlazer 2WD L6-4.2L VIN S (2003)
Fluid Line/Hose: Service and Repair
Transmission Fluid Cooler Hose/Pipe Replace-Body VIN Code 3 LL8
Transmission Fluid Cooler Hose/Pipe Replacement (Body Vin Code 3 LL8)
Removal Procedure
1. Disconnect the transmission cooler lines from the radiator.
2. Raise the vehicle. Refer to Vehicle Lifting.
3. Place a drain pan under the vehicle.
4. Remove the cooler lines (3, 4) from the radiator.
5. Separate the front and rear cooler lines at the quick connect fitting (2).
6. Remove the cooler lines from the retainer (1) located on the radiator shroud.
7. Remove the front sections of the cooler lines from the vehicle.
8. Remove the rear sections of the cooler lines from the retainer (1) located on the right side of the engine.
9. Remove the clip (2) that holds the cooler lines together.
10. Support the transmission with a transmission jack.
11. Remove the transmission support.
12. Remove the front exhaust pipe assembly.
13. Carefully lower the transmission to gain access to the cooler line fittings.
14. Disconnect the transmission cooler lines from the transmission.
