Rear
REMOVAL PROCEDURETOOL REQUIRED
J 34730-1A Fuel Pressure Gauge
NOTE:
^ Replace the [1][2]EVAP pipes and hoses with the original equipment or parts that meet the GM specifications for those parts. The replacement EVAP pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection. When replacing EVAP hoses, use only reinforced fuel-resistant hose identified with the word Fluoroelastomer or GM 6163-M on the hose. The inside hose diameter must match the outside pipe diameter. Do not use rubber hose within 100 mm (4 in) of any part of the exhaust system or within 254 mm (10 in) of the catalytic converter.
^ Do not repair the fuel feed or return pipes.
^ Replace the fuel feed and return pipes with original equipment or with parts that meet the GM specifications for those parts. The replacement pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection.
IMPORTANT: Mark or identify each fuel pipe in order to aid in installing the pipes in their original positions.
CAUTION: Refer to the Battery Disconnect Caution in Cautions and Notices.
1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Drain the fuel tanks.
4. Remove the left muffler.
5. Disconnect the tank crossover hose (5) at the left fuel tank.
6. Disconnect the fuel tank vapor pipe (2) at the left tank vapor pipe (1).
7. Cap the fuel tank vapor pipe in order to prevent possible contamination.
8. Disconnect the fuel sender fuel feed pipe (1) (jet pump to left tank).
9. Disconnect the fuel return pipe (7) at the fuel filter/pressure regulator.
10. Disconnect the fuel feed pipe (8) at the fuel filter/pressure regulator.
11. Disconnect the fuel feed rear crossover pipe (2) (left tank to jet pump).
12. Disconnect the fuel sender fuel feed pipe (1) at the fuel sender.
13. Disconnect the fuel return rear pipe (2) at the fuel sender.
14. Disconnect the fuel feed rear pipe (3) at the fuel sender.
15. Remove the left side rear fuel pipes.
16. Cap the fuel sender pipes.
17. Cap the fuel filter/pressure regulator inlet.
18. Cap the chassis fuel return pipe.
19. Remove the right muffler.
20. Disconnect the crossover hose (5) at the right fuel tank.
21. Disconnect the fuel tank vapor pipe (2) at the right tank vapor pipe (3).
22. Cap the fuel tank vapor pipe in order to prevent possible contamination.
23. Remove the fuel pipes from the two rear upper fuel and [1][2]EVAP pipe retainers (2).
24. Disconnect the fuel sender fuel feed pipe (3) (jet pump to left tank).
25. Disconnect the fuel feed rear crossover pipe (2) (left tank to jet pump).
26. Remove the fuel sender fuel feed pipe (jet pump to left tank).
27. Remove the fuel feed rear crossover pipe (left tank to jet pump).
28. Cap the fuel sender pipes.
29. Disconnect the [1][2]EVAP purge pipe (1) at the chassis EVAP purge pipe (3).
30. Cap the chassis [1][2]EVAP purge pipe.
Description:
31. Remove the right fuel tank.
32. Disconnect the fuel tank vapor pipe (2) at the canister.
33. Disconnect the [1][2]EVAP purge pipe (1) at the canister.
34. Disconnect the fuel tank vent valve pipe at the quick connect fitting (3).
35. Remove the rear fuel tank vapor pipes (1) from the following straps:
^ The straps attached to the fuel pipes (2).
^ The straps attached to the parking brake cable (3).
36. Remove the rear fuel tank vapor pipes.
INSTALLATION PROCEDURE
1. Connect the fuel tank vent valve pipe at the quick connect fitting (3).
2. Connect the fuel tank vent valve pipe (1) to the fuel pipes with 2 straps (2).
3. Connect the fuel tank vent valve pipe to the parking brake cable with 2 straps (3).
4. Route the fuel tank vapor pipe (1) through the right tunnel reinforcement opening.
5. Route the [1][2]EVAP purge pipe through the right tunnel reinforcement opening.
Description:
6. Connect the fuel tank vapor pipe (2) to the canister.
7. Connect the [1][2]EVAP purge pipe (1) to the canister.
8. Install the right fuel tank.
9. Remove the cap from the chassis [1][2]EVAP purge pipe.
10. Connect the [1][2]EVAP purge pipe (1) to the chassis EVAP purge pipe (3).
IMPORTANT: Lubricate the fuel pipes in order to aid in installation. Use mechanic's wire attached to the fuel sender end of the fuel pipe in order to pull the fuel pipe through the tunnel reinforcement opening. Pull the fuel pipe through from the top down.
11. Install the fuel feed rear crossover pipe (2) (left tank to jet pump).
12. Install the fuel sender fuel feed pipe (3) (jet pump to left tank).
13. Remove the caps from the fuel sender pipes.
14. Connect the fuel sender fuel feed pipe (3) (jet pump to left tank).
15. Connect the fuel feed rear crossover pipe (2) (left tank to jet pump).
NOTE: Refer to the Fastener Notice in Cautions and Notices.
16. Install the fuel pipes into the two rear upper fuel and [1][2]EVAP pipe retainers (2).
Tighten
Tighten the fuel and [1][2]EVAP pipe retainer nuts to 3 N.m (27 lb in).
17. Remove the cap from the fuel tank vapor pipe.
18. Connect the fuel tank vapor pipe (2) at the right tank vapor pipe (3).
19. Connect the tank crossover hose (5) at the right fuel tank.
20. Push the clamp (4) outboard against the fuel tank keeping the clamp parallel with the white stripe on the tank crossover hose.
Tighten
Tighten the tank crossover hose clamp to 4 N.m (35 lb in).
21. Install the right muffler.
22. Remove the cap from the chassis fuel return pipe.
IMPORTANT: Lubricate the fuel pipes in order to aid in installation. Use mechanic's wire attached to the fuel sender end of the fuel pipe in order to pull the fuel pipe through the tunnel reinforcement opening. Pull the fuel pipe through from the top down.
23. Install and connect the fuel return rear pipe (7) to the fuel filter/pressure regulator.
24. Install and connect the fuel feed rear crossover pipe (2) (left tank to jet pump).
25. Remove the cap from the fuel filter/pressure regulator inlet.
26. Install and connect the fuel feed pipe (8) at the fuel filter/pressure regulator.
27. Install and connect the fuel sender fuel feed pipe (1) (jet pump to left tank).
28. Remove the caps from the fuel sender pipes.
29. Connect the fuel feed rear pipe (3) at the fuel sender.
30. Connect the fuel return rear pipe (2) at the fuel sender.
31. Connect the fuel sender fuel feed pipe (1) at the fuel sender.
32. Remove the cap from the fuel tank vapor pipe.
33. Connect the fuel tank vapor pipe (2) at the left tank vapor pipe (1).
34. Connect the tank crossover hose (5) at the left fuel tank.
35. Push the clamp (6) outboard against the fuel tank keeping the clamp parallel with the white stripe on the tank crossover hose.
Tighten
Tighten the tank crossover hose clamp to 4 N.m (35 lb in).
36. Install the left muffler.
37. Refill the fuel system.
38. Tighten the fuel filler cap.
39. Connect the negative battery cable.
40. Inspect for leaks.
40.1. Turn the ignition switch ON for 2 seconds.
40.2. Turn the ignition switch OFF for 10 seconds.
40.3. Turn the ignition switch ON.
40.4. Check for fuel leaks.
41. Program the transmitters. Refer to Transmitter Programming/Synchronization in Keyless Entry.
42. Perform the idle learn procedure. Refer to PCM Idle Learn Procedure.