Steering box noise
I have a 2017 Freightliner XC chassis with ISL 380 engine. The coach had sat for several years and only has 9600 miles on it when I bought it. After a few miles of driving (warm up time) there is a very loud noise coming from the front end. It seems to be coming from the steering box or somewhere in the front suspension. There is generally no noise when driving straight - maybe a little whine. However, any turn of the steering wheel creates this very loud noise. Once warmed up - the coach does NOT have to be in motion to generate this noise. You can be sitting at idle and generate the same noise just by turning the wheel. It sounds exactly like older cars did when the power steering fluid was low. I have checked - reservoir is full and there is no evidence of any leakage. Left or right turn makes no difference.
I took it to the local Freightliner dealer for inspection. After a test drive, they said everything was normal and this was just an issue with 2017 and other years. I have a real hard time believing that. We had the exact same chassis and engine in another 2017 RV and never had any issues like this. A VIN check did not show up any recalls on this coach/chassis.
Greatly appreciate any insight or advice that other members may have. Thanks.
Bob & Kathy
2017 Berkshire XL 40B
Modified - 450hp