LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 1992 >> Forward Control 5.7 K, Standard >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission - Diagnosis - 4L80-E >> Diagnostic Charts >> Code 87 - High Ratio >> Diagnostic Aids

Diagnostic Aids

Check transmission pass-through connector. If problems are still present, check for possible internal transmission problems.

Fig 1: Code 87 Troubleshooting Diagnostic Flow Chart
G92D14129Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals