Question

Explain vacuum gauge test.

Answer 1

Den by vaccum

say thank you to me.

and get out

Answer 2

Answer:

Explanation:

A vacuum gauge shows the difference between outside atmospheric pressure and the amount of vacuum present in the intake manifold. The pistons in the engine serve as suction pumps and the amount of vacuum they create is affected by the related actions of: Pistons rings. Valve train. Ignition system.