Why do lifters tick when cold?
Why do lifters tick when cold? Sludge buildup in the engine can restrict oil flow, especially in the cold. This applies not only to the oil passages to the lifter but the oil filter and the lifter itself. Sludge will restrict the oil flow into the lifter and leave it not filled after the last cycle and thus leaving air in the lifter. Why does my lifter make a noise when I start the engine? Usually, the noisy lifters produce some sort of tapping noise during the first few seconds after the starting of the engine. And if this is...