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Home >> GMC >> 1999 >> Forward Control 7.4 B >> Repair and Diagnosis >> Engine Performance >> Engine Adjustments >> Throttle Position (TP) Sensor >> 6.5L Diesel
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6.5L Diesel

Throttle control is electronic with no mechanical link from engine to accelerator pedal. PCM monitors position of accelerator pedal based on signals from a nonadjustable Accelerator Pedal Position (APP) module. APP module is mounted above accelerator pedal.

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