Fuel Pressure Regulator: Service and Repair

Remove/install pressure regulator









DANGER:
- Risk of explosion from explosive gas. Risk of poisoning and caustic burns from swallowing battery electrolyte. Risk of injury through bums to skin and eyes from battery acid or when handling damaged lead-acid batteries.
- No fire, sparks, naked flames or smoking
- Wear acid-protective gloves, clothing and eye protection Pour battery electrolyte only into suitable and appropriately marked containers.

1 Disconnect ground cable of battery
2 Empty fuel tank
3 Remove exhaust system
4 Remove rear heat shields
5 Support rear axle center assembly (1) with transmission jack (1b)
- Transmission jack
See "Commercially Available Tools" given below.

6 Lower rear axle center assembly (1)

NOTE:
1. It is not necessary to remove the propeller shaft (2), drive shafts (3) and hand brake cables (4).
2. It is not necessary to remove the rear axle center assembly (1), only to lower it by the dimension (a) to more easily install the fuel pressure regulator (6).

7 Open collar damps (7, 8) and detach fuel line (7a) at T-connection (11)

NOTE: Installation: Replace collar clamps.

- Hose clamp pliers.
See "Commercially Available Tools" given below.

8 Detach vacuum line (10a) at fuel pressure regulator (6)
9 Pull fuel pressure regulator (6) together with fuel line (7a) out of fuel line (8a)

CAUTION: Installation: It is essential to ensure that the collar clamps are properly seated otherwise this may result in leakages in the fuel system.

10 Install in the reverse order

DANGER:
- Risk of accident as vehicle may start off by itself with the engine running. Risk of injury as working around the engine during startup or while running may result in contusions and burns.
- Secure vehicle to prevent it from moving off by itself.
- Wear closed and close-fitting work clothes.
- Do not grasp hot or rotating parts.

11 Run engine and inspect fuel system for leaks.
12 Read out DTC memory with STAR DIAGNOSIS and erase if necessary.

Commercially Available Tools

Commercially Available Tools: