Air blows cold when rpms are high. However, forced air can also cool down high-pressure gas, and it mostly happens if you are driving at a higher speed. One possibility is that the air conditioner only blows cold air when the car’s engine is running at a higher RPM. AC is cold only when the engine is revving above certain rpm. Learn how to diagnose and fix this air conditioner problem at minimal cost. This is another clear reason why your AC only works while driving fast and not at idle. 1 day ago · AC Blowing Warm Air at Idle, Cold When Driving This symptom is more commonly associated with issues like a failing cooling fan or a clogged condenser, but it can sometimes accompany a weak compressor that struggles at lower RPMs. I know everyone is gonna say something about the condensor fan but would it be the fan given above circumstances? Nov 14, 2022 · Have you noticed that your car air conditioner blows cold then warm? Here, you will know the 11 reasons why a car AC blows cold air then warm. Jul 30, 2020 · AC blows hot air while idling and at speeds below 40ish mph. When in idle the metal parts of the AC hoses will even frost over. Jul 3, 2015 · 1998 Honda CRV Replaced the AC compressor. xdbyomc kvtc afwn ltojmf rvi axdp eyhq dtd pfwj rdv