Quality vacuum gage is required ;-) engine at running temperature around 18 to 20 inches Hg = vacuum
Your distributor needs vacuum to advance your timing during acceleration. That's why you hook up your line to the port that has no vacuum at idle. :O)
Vacuum leek
same as engine vacuum.
Thassophobia - fear of sitting idle
A car can idle too low because there is a leak in the vacuum. Cracks or breaks on the vacuum hoses in the cars engine could be the cause of this.
It is not adjustable. It is computer controlled. If idle speed is incorrect you have a vacuum leak or a sensor/solenoid issue.It is not adjustable. It is computer controlled. If idle speed is incorrect you have a vacuum leak or a sensor/solenoid issue.
Could be the carburetor/idle speed out of adjustment, possibly a vacuum leak
a vacuum leak can cause high idle
Idle is not adjustable. You have a electrical or vacuum issue that needs diagnosed.
18 to 21 inches at idle
There is no idle adjustment. The idle is controlled by the ECM. You may have vacuum leaks causing incorrect idle speed. The gasket between the throttle body and the intake manifold was known to blow out and cause a vacuum leak.
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