When you turn on the heater and direct it towards your feet and face, it initially provides warm air, but gradually the air becomes cold. What could be causing this issue?

Does anyone know how to fix the issue of no warm air in a 2009 Suzuki Grand Vitara five-door version? I've already cleaned the heater core.

The engine temperature is normal, but the air from the heater is not warm.

When the air conditioning blows cold air for a while and then switches to hot air, and after being turned off for a bit, it works again before reverting to hot air, it's puzzling. Interestingly, this issue doesn't occur on rainy days or when the weather isn't too hot. What could be the cause of this situation?

Does anyone know how to adjust the Hongqi H7 when the front row has warm air and the back row has cold air?

The air conditioning in my 2019 model Yueshang only blows air towards the front windshield, while there's no air coming from the center console or side vents. Does anyone know what might be causing this issue, and is it complicated to repair?

I've got a 2014 Grand Cherokee, and lately when I turn on the heater, the driver's side vent blows cold air while the passenger side vent blows warm air. Does anyone know what might be causing this?

When starting a cold car, the RPM goes up to 2000 and then drops to 1500 but doesn't go any lower. The high idle speed is causing high fuel consumption, 20 liters for 300 kilometers! The idle speed is too high, and so is the fuel consumption. Can any experts provide a solution? 🙏

What could be causing the Luxgen M7 engine to make a knocking noise when cold, but not when warmed up?

What's going on when the heater in a Changan Yuexiang is blowing cold air?

My 207's automatic air conditioning is having issues. The air only blows towards the windshield and can't be switched to other directions. The display on the panel works, but it doesn't actually change. The AC compressor starts, but it keeps blowing hot air. The temperature adjustment panel shows the settings, but the temperature doesn't change.