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Chevrolet
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2002
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Blazer 4D Utility, 4WD, Part Time
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Automatic Transmission Diagnosis - 4L60-E
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Diagnostic Tests
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DTC P0742: TCC System - Stuck On
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Conditions For Setting DTC P0742
Conditions For Setting DTC P0742
DTC will set if the following condition occurs 3 times:
TCC slip speed is -20 to 30 RPM (-20 to 50 RPM on 3.8L) for 5 seconds.