Whining when accelerating
Posted: 25 Feb 2026, 16:43
Hi,
my AFN TDI conversion 5 speed Westfalia has recently developed a new sound. When accelerating in 4th or 5th there is a woooo type noise which goes up in pitch as speed increase then back down in pitch when changed up to 5th and going up in pitch with speed increase again. Its only when on the accelerator and disappear if I lift my foot. Any suggestions where to start looking? Its one of Aiden's gearbox rebuilds from about 7 years ago which has been flawless.
Pete
my AFN TDI conversion 5 speed Westfalia has recently developed a new sound. When accelerating in 4th or 5th there is a woooo type noise which goes up in pitch as speed increase then back down in pitch when changed up to 5th and going up in pitch with speed increase again. Its only when on the accelerator and disappear if I lift my foot. Any suggestions where to start looking? Its one of Aiden's gearbox rebuilds from about 7 years ago which has been flawless.
Pete