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View Full Version : Vacuum line between heater core lines.



RideRed4583
04-05-2013, 09:27 PM
What does it control? Does it control the flow through the core or should it flow all the time regardless?

98A4TurboAWD
04-06-2013, 06:30 AM
What does it control? Does it control the flow through the core or should it flow all the time regardless?

The vacuum line has nothing to do with the heater core. That will flow regardless.