F-150 Throttle’s Sensor Goes Amuck
Seemingly subtle variances in signals from sensors can trigger major changes in fuel and emission controls. Such was the case in my most-recent adventure into solving a drivability problem for a friend who owns a shop across town from me. This fellow doesn’t give up on problem jobs and sends cars to the dealer only for absolutely necessary things such as programming of computers. When we discussed the problem he was having with this 2004 Ford F-150 5.4 engine, it sounded like a problem that wouldn’t be too difficult to resolve.
Do You Speak My Language?
The local transmission shop, in an effort to eliminate a code 68, replaced the input- and output-speed sensors, 2-3 solenoid and the transmission-range pressure switch (later you will see why). It also replaced the internal harness and external connector because they where “old and fitted loose.” When the problem persisted, the local transmission shop sent the vehicle to us.
