3500 4x4 Pickup L6-359 5.9L DSL Turbo (1996)
Fuel Supply Line: Adjustments
A certain amount of air becomes trapped in the fuel system when fuel system components are serviced or replaced. Bleed the system after fuel system
service according to the following procedures.
WARNING: DO NOT BLEED AIR FROM THE FUEL SYSTEM OF A HOT ENGINE. DO NOT ALLOW FUEL TO SPRAY ONTO THE
EXHAUST MANIFOLD WHEN BLEEDING AIR FROM THE FUEL SYSTEM.
Some air enters the fuel system when the filters or injection pump supply line are changed. This small amount of air is vented automatically from the
injection pump through the fuel drain manifold. This is if the filter was changed according to instructions.
The system will have to be bleed manually if:
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The fuel filter is not filled before installation
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The fuel injection pump is replaced
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High-pressure fuel line connections are loosened or lines replaced
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Initial engine start-up or start-up after an extended period of no engine operation.
MANUAL BLEEDING
Low Pressure Bleed Bolt
1. Loosen the low-pressure bleed bolt.