Vacuum Leaks, That Sucks.
To aid in the discovery of a vacuum leak an audible hiss or whistle sound might be heard which will help pinpoint the problem.
Engine vacuum is used to operate several accessories such as the power brake, climate control, (heater, air conditioner) and cruise control systems. Engine pistons create vacuum on their downward stroke which allows the air/fuel mixture to be delivered into the combustion chamber.
Now let’s talk about: Vacuum Leaks.
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