Learn why carmakers use a brake booster electric vacuum pump Most vehicles use a vacuum brake booster to provide power braking. In the past, the vacuum assist was provided by engine manifold vacuum. But all that’s changed with the newer, smaller engines, turbochargers, and EVs. In fact, EVs don’t produce any vacuum or have hydraulic power steering that could provide hydraulic pressure for a hydroboost braking system. Due to the lack of manifold vacuum, carmakers have added a brake booster electric vacuum pump to supply the needed vacuum. Newer engines … Read More

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