Which hose did you replace? The attached file only shows the error code. I have the same and would like to fix soon. Does it cause any problems...
I have a 2019 that has this whistle. I've only had the truck about a month so wasn't sure if it was normal or not. Sounds like 'not'! Quite...
Hi - hope you're still monitoring these posts. I just bought a truck ('19 Volvo VNL) with a Carrier APU installed. Doing maintenance this week...