Mechanics

OUTPUT SPEED SENSOR

1998 Dodge Truck

Electrical problem
1998 Dodge Truck V8 Two Wheel Drive Automatic

Wil a bad output speed sensor affect fuel mileage?
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Guyser1029
June 30, 2008.




Yes it will

The output sensor provides a voltage signal proportional to the vehicle speed. The sensor signals are used by the TCM (Transmission Control Module) / PCM (Power train Control Module) to control shift speed, pattern, torque converter clutch apply and the speedometer.

The TCM/PCM also monitors the Automatic Transmission Input (Shaft) Speed Sensor (A/T ISS) along with the Output Speed Sensor (OSS) during shifts in order to determine if a shift is occurring too fast or too slow. The TCM/PCM adjusts the signal to the transmission pressure control solenoid valve in order to maintain a set shift feel. The TCM/PCM also monitors the sensors after a shift to calculate the amount of slippage in that gear. It then adjusts the signal to the Transmission Pressure Control Solenoid in order to maintain slippage below a set amount

Tiny
Rasmataz
Jun 30, 2008.


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