A/C Question - ZR-1 Net Registry Forums

564crewdog · 06-08-2014

Hello all, still a ZR1 noobie with a dumb question...

Starting status: I have a 1990 Z with 32K miles. A/C and heat work fine, I get a intermittent error on the HVAC that breaks out to a faulty SUN LOAD SENSOR. I've since replaced the sensor and I still get the error sometimes but it clears relatively quickly.

Question 1: When at a stoplight for more than a minute or so, while the A/C is on, it will start to blow warm and humid. Once I get moving again the A/C gets cold, is this normal?

Question 2: Is this normal operation because of not having a constant fan sucking air through the condenser/radiator?

Question 3: Is this situation related to the SUN LOAD SENSOR issue?

Thank you in advance!

06-08-2014	#1
564crewdog Join Date: Nov 2013 Location: Satellite Beach Posts: 33	A/C Question Hello all, still a ZR1 noobie with a dumb question... Starting status: I have a 1990 Z with 32K miles. A/C and heat work fine, I get a intermittent error on the HVAC that breaks out to a faulty SUN LOAD SENSOR. I've since replaced the sensor and I still get the error sometimes but it clears relatively quickly. Question 1: When at a stoplight for more than a minute or so, while the A/C is on, it will start to blow warm and humid. Once I get moving again the A/C gets cold, is this normal? Question 2: Is this normal operation because of not having a constant fan sucking air through the condenser/radiator? Question 3: Is this situation related to the SUN LOAD SENSOR issue? Thank you in advance! __________________ 1990 Corvette ZR-1 Polo Green #1648 1979 Trans Am SE Smokey & The Bandit Edition 1975 Porsche 911S (Sold) 1962 Lincoln Continental