What transmission is in a 99 Expedition?
What transmission is in a 99 Expedition?
4-speed automatic
1999 Ford Expedition/Transmission
How does the transmission work in a Ford Expedition?
The Powertrain Control Module (PCM) and its input/output network control the following transmission operations: Torque converter clutch operation. The transmission control is separate from the engine control strategy in the powertrain control module, although some of the input signals are shared.
What does the PIP signal on a Ford Expedition mean?
The ignition control module generates a profile ignition pickup (PIP) signal (engine rpm) and sends it to the PCM. The PIP is one of the inputs that the PCM uses to determine transmission strategy, Wide-Open Throttle (WOT) shift control, torque converter clutch control, and EPC pressure.
What does overdrive cancel mode do on a Ford Expedition?
The powertrain control module energizes the transmission control indicator lamp (TCIL) when the switch is off. The TCIL indicates overdrive cancel mode activated (lamp on) and electronic pressure control (EPC) circuit shorted (lamp flashing) or monitored sensor failure.
How does the speedometer work on a Ford Expedition?
The programmable speedometer/odometer module (PSOM) receives input from the rear brake anti-lock sensor. After processing the signal, the PSOM relays it to the PCM and the speed control module.
The Powertrain Control Module (PCM) and its input/output network control the following transmission operations: Torque converter clutch operation. The transmission control is separate from the engine control strategy in the powertrain control module, although some of the input signals are shared.
How much torque does a Ford Expedition have?
In fact a Ford document stated that the 2003 “Expedition’s 4R70W transmission is rated to handle up to 506 pound-feet of torque, which provides a large performance cushion beyond the peak torque rating of Expedition’s largest available engine.”
When was the first 4 speed transmission made?
Introduced in 1980, it was Ford’s first four-speed automatic overdrive transmission. The gearset design is based on the Ford “X” automatic transmissions used during the 1950s, 60s, and 70s.
The programmable speedometer/odometer module (PSOM) receives input from the rear brake anti-lock sensor. After processing the signal, the PSOM relays it to the PCM and the speed control module.
