Most drivers probably don't know what a transmission valve body is, but it's an important part of your car that needs to stay ...

When that happens, the engine gets less oxygen ... That said, it's still possible to DIY an EGR valve replacement — just remember to do your research and try to invest in a vehicle-specific ...

Some valves are integrated into the engine valve cover ... However, like other repairs, you can expect to save money if you do the job yourself. Buying an aftermarket PCV valve can cost as ...