Yes. A disconnected vacuum line will cause the engine not to idle at a constant rpm, therefore causing the car to shake.
When timing an engine, the vacuum line should be disconnected and plugged to prevent vacuum advance from affecting the timing reading. This allows for a more accurate static timing measurement. After setting the timing, the vacuum line can be reconnected.
Be sure the vacuum supply line from the engine to the transmission vacuum modulator is not disconnected.
Many vehicles use a vacuum to operate the HVAC controls. Check under the hood for a disconnected or broken vacuum line.
Many vehicles use a vacuum to operate the HVAC controls. Check under the hood for a disconnected or broken vacuum line.
An earthquake is shaking of the earth caused by the release of energy from within the Earth's crust. It occurs when there is a sudden slip along a fault line, resulting in ground shaking and sometimes surface rupture.
A loose or disconnected wire.
The headlights require a vacuum to operate down. If there is no vacuum they remain in the up position. You may have a vacuum leak such as a disconnected or broken vacuum line. I have also seen the vacuum reservoir can rotted out and unable to hold a vacuum.
You have a vacuum line disconnected or broken under the hood, check in the area around the master cylinder and the vacuum reservoir.
Bank 1 system to lean. I would suspect a vacuum leak. Check under the hood for a disconnected or cracked vacuum line.
You have a vacuum line disconnected probably under the hood. The HVAC controls are operated by vacuum and when there is no vacuum it system goes into defrost mode.
there is a good chance the main vacuum supply line from the engine that feeds the HVAC system is broken or disconnected. Inspect the vacuum lines under the hood.
Check for a vacuum leak or disconnected vacuum line