Hi ya'll - could really use some help diagnosing an issue I'm experiencing. I am getting what sounds like some sort of high-pitched squeal coming from the engine compartment while I am on the accelerator. The noise occurs only while in gear (1800-2100 RPM) and is louder when under load, such as towing my boat or trailer. Is this a common issue anyone else is experiencing, if so could you provide some suggestions for a solution? I am not able to reproduce the sound while revving the engine in park, it's only while in gear.

Thank you in advance!

 

When was the last time you had the belt replaced? Next thing to check is the pulleys

 

Are you certain it's from the engine bay? I had a similar problem but it was my rear gears teeth were worn and chiped

 

I just replaced the belt a week ago.

 

It's most definitely coming from the front of the truck, however it's almost impossible to locate for me because it only occurs while in motion.

 

Please excuse my ignorance, but wouldn't pulleys continually squeak and not only occur while in drive?

 

different loads on the engine while in gear and at different RPM's