Throttle body question
Hello everyone. I had a question about an issue that im having with my 2006 F-150 5.4L Super Crew.
Recently I have been experiencing a problem that sends my truck into reduced speed mode. The "wrench" light will show up on the dashboard, the engine will derate to 1000rpm, the accelarator pedal will not work, and I am forced to pull over, turn the truck off and then on to reset the computer and I will be on my way for days to weeks until it happens again. Recently on a road trip, the same thing happend to me and this time the check engine light also illuminated. I reluctantly brought in the truck to the dealer only to be told that I need a new throttle body assembly and that the throttle body is sending a bad signal to the ECM. Now I am a marine mechanic and deal with fuel injected engines all the time. Can some one please clarify or shed some light on this situation for me, I feel that the TPS sensor would be what is to blame, not having to replace the entire throttle body. I feel that they are trying to stick it to me. All responses will greatly appreciated!!!!