RAM 3500 Truck 2WD V10-8.0L VIN W HDC (2000)
Governor: Description and Operation
Electronic Governor
DESCRIPTION
Governor pressure is controlled electronically. Components used for governor pressure control include:
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Governor body
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Valve body transfer plate
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Governor pressure solenoid valve
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Governor pressure sensor
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Fluid temperature thermistor
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Throttle Position Sensor (TPS)
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Transmission speed sensor
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Powertrain Control Module (PCM)
GOVERNOR PRESSURE SOLENOID VALVE
Fig. 65
The solenoid valve is a duty-cycle solenoid which regulates the governor pressure needed for upshifts and downshifts. It is an electro-hydraulic device
located in the governor body on the valve body transfer plate (Fig. 65).
GOVERNOR PRESSURE SENSOR
Fig. 66
The governor pressure sensor measures output pressure of the governor pressure solenoid valve (Fig. 66).
GOVERNOR BODY AND TRANSFER PLATE
The transfer plate is designed to supply transmission line pressure to the governor pressure solenoid valve and to return governor pressure.
The governor pressure solenoid valve is mounted in the governor body. The body is bolted to the lower side of the transfer plate (Fig. 66).
TRANSMISSION FLUID TEMPERATURE THERMISTOR
Transmission fluid temperature readings are supplied to the transmission control module by the thermistor. The temperature readings are used to