Hi everybody,
I just bought my car around 3 months ago and did approximately 6000 km. I noticed that when I am cruising at low rpm especially on third gear at around 40-50 km/h and encounter a slope, if I press the throttle lightly and it stays in third gear, there is a weird clacking noise until the engine reaches around 3000 rpm. But if I throttle hard and the car goes into second gear I don't hear the weird noise unless if the car goes into third gear again due to speed gain and I'm still on the slope. This is quite annoying if you want to for example maintain a constant speed of 60 km/h on the slope on third gear. I would say that the noise resembles an engine lugging noise from my experience driving manual cars in the past, but my car is an auto and the 1.6 lt seems powerful enough to encounter some of the light slopes where I encounter the noise. Does anyone know where this noise comes from?
Thank you.