You take your car in for an oil change. The work is almost done when the technician comes out to talk to you. Hes holding your air filter and PCV valve and recommending that you replace both ...

Then remove the retaining bolts and lift the EGR valve out of the engine compartment. The post How to Test and Clean an EGR Valve appeared first on Family Handyman.

This built in check valve located in the front will help tell the difference between the two most common proportioning valves. This one is for drum brakes in the rear. 4.All smooth is made for 4 ...

This valve is placed downstream of the master cylinder and performed both as a proportioning valve to reduce the pressure to the rear brakes while also acting as a failure warning device to ...