C 3500 Truck 2WD V8-6.6L DSL Turbo VIN 1 (2002)
25. Remove the fuel pressure regulator (1).
IMPORTANT: DO NOT use compressed air to remove debris while the fuel pressure regulator is removed.
26. If dirt or debris is found in the bore or seating surfaces of the fuel injection pump, perform the following:
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Place a clean rag over the bore on order to collect the excess fuel.
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Bump the engine over in order to flush any debris out of the regulator bore.
INSTALLATION PROCEDURE
IMPORTANT: If the pressure regulator is being re-used, check the O-rings for damage. If the O-rings are damaged, install NEW O-rings.
1. Lubricate and install NEW O-rings onto the regulator. Lubricate the O-rings with clean, NEW engine oil.
IMPORTANT: If the regulator is installed at an angle the O-rings may be damaged, resulting in possible fuel leakage.
2. Install the fuel pressure regulator (1).
