Heater core recommendation needed + another HVAC issue - ZR-1 Net Registry Forums

DRM500RUBYZR-1 · 08-19-2022

Leak is absolutely heater core.

HVAC is losing Vacuum.
It goes into default mode, when vacuum drops, sending air to windshield and floor vents. If vacuum supply is good to the programmer, then perhaps the programmer, but more likely the hose that troubles most everyone that you can inspect when doing the heater core.

Marty

08-19-2022	#11
DRM500RUBYZR-1 Join Date: Sep 2008 Location: Mullica Hill, New Jersey Posts: 2,566	Re: Heater core recommendation needed + another HVAC issue Leak is absolutely heater core. HVAC is losing Vacuum. It goes into default mode, when vacuum drops, sending air to windshield and floor vents. If vacuum supply is good to the programmer, then perhaps the programmer, but more likely the hose that troubles most everyone that you can inspect when doing the heater core. Marty