W150 1/2 Ton Pickup 4WD V8-318 5.2L VIN R 4-bbl (1982)
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Speed Control Servo: Testing and Inspection
Servo Unit Holding Coil & Low Speed Switch Test
Refer to "Speed Control Wiring Diagrams," Prior to performing any tests, ensure servo or valve body and electronic module are properly
tested.
Fig. 2 Speed control wiring diagram. 1980-84 Vans, Wagons & Front Sections