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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 254 (Engine Controls - Trouble Shooting - No Codes - 2.2L) >> Symptoms >> Detonation/Spark Knock >> Fuel System

Fuel System

WARNING: This page is about a different car, the 2003 Pontiac Sunfire, 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Test for incorrect fuel pressure. Go to FUEL PRESSURE TEST under FUEL SYSTEMS (GASOLINE) in BASIC DIAGNOSTICS PROCEDURES - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE article.
  2. Check for a restricted fuel filter. Go to FUEL SYSTEM DIAGNOSIS (GASOLINE) under FUEL SYSTEMS in BASIC DIAGNOSTIC PROCEDURES - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE article.
  3. Test the fuel injectors. Go to FUEL INJECTOR BALANCE TEST WITH SPECIAL TOOL , FUEL INJECTOR BALANCE TEST WITH TECH 2 , or FUEL INJECTOR COIL TEST under FUEL SYSTEMS (GASOLINE) in SYSTEM & COMPONENT TESTING - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE article.
  4. Check for a contaminated fuel condition. Go to ALCOHOL/CONTAMINANTS-IN-FUEL DIAGNOSIS WITH SPECIAL TOOL or ALCOHOL/CONTAMINANTS-IN-FUEL DIAGNOSIS WITHOUT SPECIAL TOOL under FUEL SYSTEMS (GASOLINE) in SYSTEM & COMPONENT TESTING - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE article.
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