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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Engine Mechanical - 6.6L (On-Vehicle)) >> Removal & Installation >> Fuel Injection Pump >> Removal

Fuel Injection Pump: Removal

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect battery cables from both batteries. Remove air intake duct between air cleaner and turbocharger inlet housing. Cover air intake pipe end with duct tape to prevent infiltration of dirt. Drain coolant. See DRAINING & REFILLING COOLING SYSTEM . Remove upper fan shroud. Remove fan blade assembly.
  2. Remove serpentine belt. Remove bolt holding positive battery cable junction box and bracket and move out of the way. Remove only the air conditioning/power steering bracket. Do not discharge the A/C or remove A/C and power steering lines.
  3. Remove A/C compressor. Remove power steering pump. See appropriate POWER STEERING article in STEERING. Position A/C compressor and power steering pump aside. Remove oil filler tube.
  4. Remove air conditioning/power steering bracket. Remove alternator. See appropriate STARTERS article in 2002 STARTING & CHARGING SYSTEMS. Remove thermostat housing bracket, wiring and fuel test port, and 2 nuts. Remove PCV catch tank from PCV bracket and bolt below holding lower line, and move to the side. Remove alternator bracket.
  5. Remove turbocharger cooling hose return line clamp and hose. Remove upper radiator hose at outlet pipe. Remove bracket and support bracket at valve cover, and swing out of way. Remove bolt holding wiring support bracket at thermostat housing. Move main wiring harness by disconnecting the fuel pressure regulator connector on the fuel injection pump and fuel injection control module connectors.
  6. Flip the wire harness and harness tray towards the back and set aside. Disconnect the heater pipe bolt and temperature sensor wire from the thermostat housing. Remove air intake pipe. Remove water crossover assembly. Remove hose to turbocharger water feed line.
  7. Cap all open fuel connections with suitable plastic plugs in order to prevent infiltration of dirt. Disconnect all high pressure fuel lines and remove supply pipe and hose at fuel injection pump and function block.
  8. Remove return fuel hose from fuel injection pump. Disconnect Y-junction banjo fitting at junction block. Remove bolts holding fuel injection pump, 2 bolts in front cover and 2 bolts in block.
  9. Be careful not to damage any mating surfaces. Remove fuel injection pump from block using 2 screwdrivers to work the pump from block towards rear of engine keeping the pump straight. Remove fuel injection pump.
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