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Home >> GMC Truck >> 1987 >> R 3500 P/U 2WD V8-305 5.0L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Fuel Delivery and Air Induction >> Idle Speed

Idle Speed

Base Idles Speed
Manual Transmission 700 rpm
Automatic Transmission 550 rpm

Fast Idle Speed
Manual Transmission 1700 rpm (on high cam)
Automatic Transmission 1800 rpm (on high cam)

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