If you happen to have a vehicle with a manual transmission that's shifting hard, it's not something that should be ignored.

If you have been wondering what a PCV valve is, how it works, how to replace it, and how much it costs to repair, we have you ...

The positive crankcase ventilation valve releases exhaust gas and unburned fuel from the engine block into the intake manifold. All engines allow some exhaust gases, unburned fuel and oil to ...