Strange whining sound
Okay all, I've got a question.
So for a while now, I've had some really weird sounds coming out of my truck. The first is a crazy knocking coming from the engine, and it's most noticeable from the lower left, like by the driver side wheel. It's loud even when the hood is closed. It eventually goes away after the truck gets warmed up, but it might just get a lot softer - not totally sure.
The other sound is a loud whine. This one confuses me to no end. It starts when I get up to about 35 mph and gets much quieter after i get past 65 mph. I'm not really sure why. could this have anything to do with my fuel pump by chance? When I take my foot off the accelerator the whining sound stops, but then when I put my foot back on it starts again. The sound follows my foot being on the accelerator. When I take it off it stops instantly. Put my foot on, starts right up again, so it doesn't do it when I coast.
This is confusing the hell out of me. Anyone have any insight? Seems like it's going to be expensive to fix...