60 sounds a bit high on a 70 degree day. I would expect about a 20 degree difference. I would guess the 92 Pace is not using the same refrigerant as the Legend so comparisons are difficult. The dash air in my 97 Endeavor has a 20 degree differential (80 outside and 60 from the vents). The Heater Valve is a good guess as possibly passing some hot water.
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2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
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