Your car, truck, or utility vehicle relies on the vacuum that results from engine combustion to power many of the vehicle’s components and accessories. DOC Auto advises that your vehicle’s performance will suffer if you have a vacuum leak. A vacuum leak, obviously, reduces the pressure needed for your automobile to operate efficiently. Here are the causes of vacuum leaks and the signs that your vehicle might have one.
Auto Vacuum Leak Causes
Your vehicle’s engine is filled with a ton of moving parts. As the engine ages, the parts wear down and break. Preventative maintenance helps prevent parts from wearing down to the point that they cause damage to your engine. It also keeps your fluids filled and fresh. Vacuum leaks are caused by this part wear and tear. Specifically, you can get a vacuum leak in your
- Brake booster
- Vacuum hoses
- Vacuum tubes
Depending on the extent of the vacuum leak, you might be able to hear it. You may hear hissing sounds coming out of your engine as it struggles to perform, but more on that below. It’s important to have the vacuum leak fixed as soon as possible in order to avoid additional engine damage. In fact, if the leak is severe enough, you might lose accessory or component function, including your brakes.
Signs of a Vacuum Leak
Aside from hissing sounds, you may also hear squealing or what sounds like sucking coming from your engine. Think of how your vacuum hose sounds when you’re cleaning your house. A leak may have the same sound. You can hear the leak coming from your engine, especially if you’re stopped at a red light or stop sign. Other signs of a leak include
- A rough or sporadic engine idle
- Stalling or hesitation in the engine
- A check engine light warning on the dashboard
Part of the reason why a vacuum leak causes these symptoms is that you have too much air in your engine. Your engine’s combustion relies on air and gasoline in order to operate. When there is too much air, the engine becomes starved for fuel and the above performance issues ensue. Your engine will feel as if it’s going to stall and, in severe cases, it just might.
Call DOC Auto today if you are having engine trouble. We are the best auto repair shop in Fredericksburg, VA, and we’ll check for a vacuum leak and other potential problems.