What is a brake vacuum pump replacement?
A brake vacuum pump replacement removes a faulty component from your vehicle’s brake booster, then installs a new one.
Turbo and diesel engines need a vacuum pump to extract the air and create the vacuum necessary for the brake booster to function. The vacuum pump reduces reliance on the engine for the vacuum. You might also need a vacuum pump if you drive at high altitudes where the air is thinner.
When should I replace my brake vacuum pump?
Check your car's manual to learn how often you should replace your brake vacuum pump. Having said that, there are a few signs you might need a replacement sooner than expected:
The brakes feel “poky” or slow to respond
In order to stop your car, you must push the brake pedal extra hard
When you press the brake pedal, you hear a hissing sound
The brake pedal slips to the floor when the car is running but stationary
It's hard for you to brake quickly when you have to stop several times in heavy traffic
Key takeaway: If you hear a hissing noise when you press the brake pedal, or you need to push it harder than normal, you might have a faulty brake vacuum pump.
How long does a brake booster vacuum pump last?
A brake booster vacuum pump is intended to last the entire life of your vehicle. However, since it’s one of the hardest-working parts in your brake system, it can get damaged or wear out.
Can I do a brake vacuum pump replacement myself?
Unless you’re a confident DIY mechanic, we don’t recommend performing a brake vacuum replacement yourself. The brake system isn’t hard to access—you only need a torque wrench, brake cleaner, and replacement parts. However, you’ll have to work around the coolant hose (the contents of which can burn your skin) and if you make a mistake, you could cause a catastrophic brake fluid leak.