How is the throttle position sensor on a 1998 Ford Expedition Eddie Bauer replaced?


The TPS is back near the firewall. It's held in with 4 bolts and connected to the throttle cable with another bolt. If your car is stalling because the TPS is sticking, a shot of WD40 will save you the cost of the part.

The TPS is nowhere near the firewall. It is mounted on the side of the throttle body. This is where the air cleaner duct routes into on the top of the engine. You will want to look on the driver side of the throttle body. There will be three wires running to the TPS sensor. Unhook the sensor. Remove the two screws that mount it to the throttle body. Install the new sensor. These are non adjustable sensors on the newer Fords. I've never seen WD40 save a TPS sensor.