Tune-ups are all about engine maintenance so your vehicle starts well, runs smoothly and operates as efficiently as possible. Today’s cars need tune-ups far less often than older vehicles did, but ...

We may receive a commission on purchases made from links. Owning a vehicle is an expensive undertaking, especially with the cost of gas on the rise again. Repairs can also be costly and difficult to ...

When an engine's exhaust valve opens, there are two distinct movements within the exhaust pipe. The first is the pressure movement of the shock wave that is generated by the violent expansion of hot ...