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GMC
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1993
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Forward Control 6.2 J, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/Codes - V6
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Self-Diagnostic Tests
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Code 32, EGR System Error - 3.1L
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Diagnostic Aids
Diagnostic Aids
The EGR system may become inoperative if the park/neutral switch is out of adjustment.