Soooo I have a high pitch whine in my canyon. It's been noticeable for a month or so now. It's not the turbo, the wife, or the kids. I don't think it's coming from the speakers, but since you can't really turn the audio system completely off, I guess it's hard to say for sure.
It sounds like a supercharger. In the passenger side foot well. Cruising at any speed, nothing. Accelerating or climbing a hill, it gets louder, and maybe slightly higher in pitch, but it mostly just gets louder and definitely correlates to engine LOAD, not RPM.
I thought maybe the injection pump was getting grouchy because my fuel filter life just touched the single digit percentages, but no change after replacing them. Seemed like a stretch anyway.
No CELs. No fault codes. Doesn't seem to be down on power. No funny smells. Haven't used it for anything beyond its normal duties. Everything showing within normal parameters for engine, trans, emissions, all of it when pulling live data.
Any ideas?
It sounds like a supercharger. In the passenger side foot well. Cruising at any speed, nothing. Accelerating or climbing a hill, it gets louder, and maybe slightly higher in pitch, but it mostly just gets louder and definitely correlates to engine LOAD, not RPM.
I thought maybe the injection pump was getting grouchy because my fuel filter life just touched the single digit percentages, but no change after replacing them. Seemed like a stretch anyway.
No CELs. No fault codes. Doesn't seem to be down on power. No funny smells. Haven't used it for anything beyond its normal duties. Everything showing within normal parameters for engine, trans, emissions, all of it when pulling live data.
Any ideas?