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GMC
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1989
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Forward Control 7.4 W, Standard
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Repair and Diagnosis
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Engine Performance
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Adjustment
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Tune-Up - V8
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Adjustments
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Throttle Position Sensor (TPS)
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Notes
Throttle Position Sensor (TPS): Notes
NOTE:
"SCAN" tester may also be used to perform TPS adjustment. No throttle position sensor is used on 7.4L Carbureted engine.