C 3500 Truck 2WD V8-350 5.7L VIN K TBI (1995)
EGR Valve: Service and Repair
Port EGR Valve Replacement
EGR Valve
REMOVAL:
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Remove air cleaner.
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Remove EGR valve vacuum tube at valve.
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Remove bolts or nuts.
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Remove EGR valve and gasket from manifold. Discard gasket.
INSPECTION:
If the EGR passage indicates excessive build up of deposits, the passage should be cleaned. Care should be taken to ensure that all loose particles
are completely removed to prevent them from clogging the EGR valve of from being ingested into the engine.
CLEANING:
CAUTION: DO NOT wash the EGR valve in solvents or degreaser as permanent damage to the valve diaphragm may result. Also, sand blasting
of the valve is not recommended since this can affect the operation of the valve.
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With a wire wheel, buff exhaust deposits from mounting surface and around valve.
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Look for exhaust deposits in valve outlet. Remove deposit build up with a screwdriver.
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Clean mounting surfaces of intake manifold and valve assembly.
INSTALLATION:
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Install new EGR gasket.
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Install EGR valve to manifold.
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Install bolts or nuts. Tighten to 20 Nm (15 lb.ft.).
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Connect vacuum tube to EGR valve.
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Install air cleaner assembly.
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Check operation of EGR system to ensure correct operation.
