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Old 02-19-2012, 09:00 PM   #1
cahurst2001
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Join Date: May 2011
Location: Austin, TX
Posts: 32
Coolant in heater/AC question

So I tore down my ventilation system today and there was probably 16 oz of coolant that came out of the vents, not the hoses. Is this a lot?

As far as I know the ventilation hasn't been changed or cleaned in 40 years. The heat/air hasn't worked since I bought the truck about a year ago. I did change the coolant and replace the thermostat shortly after I bought it.

Thoughts?

Also, how difficult is it to switch to R134a from R12?
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