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#1
06-08-2008, 03:08 AM
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heating/cooling vacuum diagram
The heat/AC only exits the defroster and the floor vents on all settings. Nothing exits the vents in the dash. Also, 1/2 of the vacuum lines in the engine compartment are unattached. Would appreciate a vacuum diagram so I can rectify the problem.
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#2
06-08-2008, 08:57 AM
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Re: heating/cooling vacuum diagram
Year make and model and engine?
Is there not a vacuum diagram under the hood? You will need a vacuum line from engine vacuum to vacuum tank and a line from vacuum tank to heater controls. There is usually a check valve to hold vacuum at the tank or from engine to tank. Have you checked th AZ online repair web site?
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Remember proper testing gives us the answer to many problems. MT
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