Engine vacuum pumps are designed to remove gas from a sealed volume in order to create a partial vacuum. These pumps aid the engine in generating extra power which equates to increased horse power, and can also help power brake boosters. Pumps also do wonders for increasing your engine life and keep oil cleaner for longer. Diesel engines also make use of these pumps and these add to the lifespan of the diesel engine and reduce the costs associated with replacing parts.
These pumps are usually hooked up to one or both valve covers and work with the intake manifold to suck the air from the engine, reducing the air pressure build-up created due to the combustion gases going past the piston rings. These pumps differ in the amount of air volume they are designed to suck up.
Manifold vacuum pumps allow engines to operate more efficiently and, with this improved efficiency, the engine consumes less fuel. The exhaust gasses from the pump are usually sent to the breather tank which is used to store moisture, oil, and unspent fuel. These pumps have moved vehicle engine technology to greater heights and improved efficiency. If pumps begin to falter in a vehicle, it is advisable seek out a qualified technician and have them replaced with genuine replacement parts. Your mechanic will be able to source the correct part for your vehicle, but insist on only purchasing quality parts.