Need to know year, make, engine and model of the vehicle.
Some of the HVAC controls are vacuum operated so, yes a vacuum leak could effect the cooling.
Air Conditioning Vacuum Pump.
Yes, the 1999 Oldsmobile Intrigue's air conditioning and heating system utilizes vacuum controls to operate various components, such as the blend door and mode door. These vacuum controls help direct airflow between different vents and regulate temperature by adjusting the mix of hot and cold air. If you're experiencing issues with the AC or heater, it may be worthwhile to check for vacuum leaks or inspect the vacuum lines connected to the system.
no Agreed. PCV is Positive Crankcase ventilation it sucks vapors from crankcase from a vacuum source from intake, nothing to do with cooling
Check the blend door under the dash on the F150. Check the vacuum system as well. The vacuum controls the blend door and controls the heat as well as air from the defrost.
It is a bimetallic vacuum switching valve. it controls the EGR system.
You have a vacuum line disconnected probably under the hood. The HVAC controls are operated by vacuum and when there is no vacuum it system goes into defrost mode.
Vacuum dropping in a steam turbine can be caused by air leakage into the system, inadequate steam supply, malfunctioning condenser or cooling system, or excessive steam flow rate. This drop in vacuum can reduce the efficiency of the turbine and impact its performance. Regular monitoring and maintenance of the system are essential to prevent issues leading to vacuum drop.
A vacuum pump in a cooling condenser functions to remove air and non-condensable gases from the condenser system, thereby maintaining a vacuum environment. This reduction in pressure enhances the efficiency of the condensation process by lowering the boiling point of the refrigerant, allowing it to condense more effectively. By ensuring that only the refrigerant vapor enters the condenser, the vacuum pump helps optimize heat transfer and improves overall system performance.
You'll need a vacuum pump that is used by AC service technicians.
The Vacuum switching valve controls the EGR Valve.
You are losing vacuum from cracked/bad vacuum lines or the vacuum check valve for the HVAC controls is bad. When the engine is under load climbing that hill it does not produce enough vacuum to operate a leaky HVAC system.