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Home >> GMC >> 1982 >> Magnavan Automatic Trans, Trans Mfr CD 400/M40 >> Repair and Diagnosis >> General Information >> Engine Performance >> Engine Performance Diagnostic Routine Outline - General Information >> Where Does DRIVEABILITY Diagnosis Start? >> Diagnose Symptom

Diagnose Symptom

NOTE: This article is generic in nature and all information does not apply to all vehicles. For vehicle specific information, see the appropriate articles in the ENGINE PERFORMANCE category.
  1. If no self-diagnostics available, or no trouble codes present, identify symptom.
  2. See trouble shooting procedure to identify problem. (See Trouble Shooting - No Codes) 
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