then it’s one of the signs of a bad idler pulley. The first thing you should do is replace it to prevent the engine belt from losing tension and slipping. Like any other component in the vehicle, the idler pulley surface is also worn ...
The first possibility is that you have a bad water pump. If your water pump is bad it could be causing the rattle you’re hearing when you step on the gas and coolant would most likely be leaking around the shaft and onto the pulley which would explain there is antifreeze all over your...