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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 423 (Engine Controls Troubleshooting - No Codes - 3.8L) >> Symptoms >> Vehicle Surges Or CHUGGLES >> Additional Checks

Additional Checks

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  1. Check TCC operation. See appropriate DIAGNOSIS article in TRANSMISSIONS.
  2. Check exhaust system for possible restrictions. Inspect for the following:
    • Inspect exhaust system for damaged or collapsed pipes.
    • Inspect mufflers for heat distress or possible internal failure.
    • For possible plugged 3-way catalytic converter. See EXHAUST SYSTEM CHECK under EMISSION SYSTEMS & SUB-SYSTEMS in SYSTEM & COMPONENT TESTING - 3.8L BONNEVILLE, GRAND PRIX, IMPALA, LESABRE, MONTE CARLO, PARK AVENUE & REGAL article.
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