Common Engine Vacuum Leak Symptoms

1 Apr
Engine Vacuum Leak Symptoms

Common Engine Vacuum Leak Symptoms

Your car, truck, or utility vehicle will suffer from performance issues if the engine has a vacuum leak. Your engine can end up with a vacuum leak through the vacuum hoses as they age. Part of what makes a vacuum leak such a problem is that your vehicle relies on vacuum pressure to power components and accessories. The vacuum leak also creates a lean fuel condition where there is too much air in the engine and not enough diesel fuel or gasoline. DOC Auto can fix the engine vacuum leak if you have one. Here are some common engine vacuum leak symptoms.

Check Engine Light

One of the first things that will happen is your check engine light will come on and not turn off. This is because the engine is struggling with the high amounts of air circulating through it. Until you get the vacuum leak fixed, your check engine light will stay on.

Engine Stalls

Because there is too much air in the engine, you may experience frequent stalls. If the vacuum leak is quite bad, you may not even be able to get your engine started. Other engine performance issues resulting from a vacuum leak include sputtering and misfiring.

Hesitant Acceleration

You may also notice a problem with your vehicle’s acceleration. Your automobile might lurch when you press down on the accelerator, or it might not respond at all. The engine may stutter as the vehicle attempts to pick up speed when you press down on the accelerator

High RPMs

One clear sign that your automobile has a vacuum leak is your revolutions-per-minute (RPMs). The reading on the tachometer will be much higher than normal because the excess air in the engine causes it to rev much higher. The tachometer needle might also shoot up and down as the engine tries to process the excess air.

Strange Sounds

You may hear your engine’s vacuum leak from the inside of your automobile if it is bad enough. It will sound like hissing, squealing, or a sucking noise that is similar to the sound you hear from a vacuum cleaner. You can also leave your engine running and pop the hood to see if you can hear the vacuum leak. Just make sure your vehicle is parked on level ground, and that you set the parking brake. You don’t want your automobile to roll.

Call DOC Auto in Fredericksburg, VA, to schedule an appointment if you suspect that your car, crossover, truck, or SUV has a vacuum leak. We can take care of the problem for you.

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Chatham Heights
175 Chatham Heights Road
Fredericksburg, VA 22405
(540) 899-3732

Courthouse Road
10734 Courthouse Road
Fredericksburg, VA 22408
(540) 710-0173

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