When an engine will not idle or run correctly, a vacuum leak may be the culprit.
Such leaks allow:
leading to a disruption in the operation of the computer system and a wide range of symptoms.
An air leak should be suspected if:
Vacuum leaks are frequently cause by deteriorated, broken, or loose vacuum hoses which are often difficult to pinpoint. Even a tiny leak, as small as 0.020 of an inch, can degrade engine performance, compromise drivability, and turn on your “Check Engine” light.
TIP: A vacuum leak often disguises itself as an ignition or fuel problem.
By reducing the optimal pressure and vacuum within an operating engine, a vacuum leak can inhibit the action and function of a car’s carburetor and/or fuel injection system, which directly impacts vehicle starting.
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