Quote:
Originally Posted by pjq
Is there a visual reference to know when you have reached the correct amount of vacuum necessary to start the vacuum coolant fill process? For example the coolant hose lines are collapsed?
If I had a vacum gauge the reading should be 25 but I don't have a gauge.
When is too much vacuum and when is not enough?
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There is no visual reference, you should have a gauge, and should be pulling 23-27 inches of vacuum. It is common for the hoses to collapse well before that level of vacuum is reached. And there is no "too much vacuum" level, you need to get all the air out and have enough vacuum to pull in the new coolant.
What kind of vacuum fill system are you using that does not have a proper gauge?
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