I apologize if I am posting in the wrong section, but I am stumped!
I recently replaced my cam shaft sensor, and shortly after, my truck started making a high pitched, ear piercing squealing noise at 3000-3500 RPMS. It does not make the noise at any other time.
It also only makes this noise while driving, not while idling.
The noise goes away once it downshifts.
I have showed the noise to a few mechanics and they all say they have never heard anything like it.
I have heard a few theories that it could be:
Power Steering pump,
Cam Shaft Sensor,
or pulleys or the belt..
I checked the belt and pulleys and don't see anything wrong,
I tried spraying them and the noise does not go away.
The only noticable thing that I could find with an issue on my pickup is that the top piece on the intake plenum is separated because the bolts are stripped, and it may be sucking in air at a certain speed?
Hoping to hear if anyone else has had this issue!
Let me know your ideas.
Thanks y'all!