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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - A/T >> Diagnostic Flow Charts (Cars) >> Chart C-8A, Torque Converter Clutch 1.6L & 2.2L TBI T & J Bodies >> Diagnostic Aids

Diagnostic Aids

An engine coolant thermostat that is stuck open or opens at too low a temperature may result in a delayed TCC operation.

Fig 1: Chart C-8A, Troubleshooting Chart (1.6L & 2.2L TBI T & J Bodies)
G92G13751Courtesy of GENERAL MOTORS CORP.
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