Quote:
Originally Posted by SteveCanyon
My vacuum pump starts/stops with 5-6 sec intervals between running (runs for maybe .5 sec each time). Not sure if it has a leak somewhere but have no drive ability issues.
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Steve.....you have a vacuum leak which as you describe will not be significant in terms of the Secondaries operational until the vacuum pump is running continuously. That indicates the vacuum pump cannot keep up with the leak (if the Vacuum Pump runs continuously with switch on and engine not running).
I think
almost everyone has a vacuum leak of sorts unless the vacuum pump runs for a couple seconds and stays off for a minute or more. That is an indication of a significant tight Vacuum System if the Vacuum Pump stays off for a minute or more (with switch on and engine not running).