C 2500 Suburban 2WD V8-350 5.7L (1994)
Fuel Injector: Service and Repair
Fuel Injector Removal
CAUTION: Use care in removing the fuel injectors to prevent damage to the electrical connector terminals, the injector filter, and the fuel nozzle. The
fuel injector is serviced as a complete assembly only. Also, since the injectors are electrical components, they should not be immersed in any type of
liquid solvent or cleaner as damage could occur.
Remove or Disconnect:
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Disconnect electrical connectors to fuel injectors. (Squeeze plastic tabs and pull straight up.)
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Remove fuel meter cover assembly, refer to FUEL METER COVER ASSEMBLY.
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With fuel meter cover gasket in place to prevent damage to casting, use a screwdriver and fulcrum to carefully lift out each injector.
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Remove lower (small) O-rings from nozzle of injectors and discard.
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Remove fuel meter cover gasket and discard.
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Remove upper (large) O-rings and steel backup washers from top of fuel injector cavity and discard.
Inspect:
Fuel injector filter for evidence of dirt and contamination. If present, check for presence of dirt in fuel lines and fuel tank. If dirt is present refer to
FUEL TANK/SERVICE and REPAIR/FUEL SYSTEM CLEANING PROCEDURE.
Fuel Injector Part Number Location
NOTE: Be sure to replace the injector with an identical part. Injectors from other models can also fit in TBI model 220, but are calibrated for
different flow rates.