Installation Procedure

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NOTE: If the pressure regulator is being re-used, check the O-rings for damage. If the O-rings are damaged, install NEW O-rings.

Fig 1: Fuel Pressure Regulator

Courtesy of GENERAL MOTORS CORP.

NOTE: If the regulator is installed at an angle the O-rings may be damaged, resulting in possible fuel leakage.

Lubricate and install NEW O-rings onto the regulator. Lubricate the O-rings with clean, NEW engine oil.
Install the fuel pressure regulator (1).

Fig 2: Fuel Pressure Regulator Screws

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Fastener Caution .

Install the 3 fuel pressure regulator screws (1) using a T25 TORX®.
- Tighten the screws a first pass to 4 N.m (35 lb in).
- Tighten the screws a final pass to 7 N.m (62 lb in).
Install the distribution block hoses to the distribution block.
Position the distribution block hose clamps.

Fig 3: Fuel Pressure Regulator Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Connect the fuel pressure regulator electrical connector (1).
Install the air outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
Install the center intake manifold. Refer to Center Intake Manifold Replacement (LMM) .
Prime the fuel system. Refer to Fuel System Priming .
Start the engine.
If the engine stalls, repeat the above step.
Once the engine starts, inspect for fuel leaks.