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Why does my AC stop working at high speed?
The A/C thermal expansion valve (TXV) most likely is the cause of the A/C system freezing up at higher engine or vehicle speeds. The A/C system should be performance tested and checked for pressures to make sure the system has enough refrigerant or the TXV is the cause of the problems.
Why do my rpms fluctuate at idle with AC on?
The exact cause of the issue had been found to be that of a loose alternator belt. When the engine was cold, the alternator had a slack in it and if the AC load is added on the engine, the rpm fluctuated. Solution was simply to tension the alternator belt.
Why does my AC stop when my car stops?
So what caused your air conditioner to stop working? Most likely, your AC system lost its charge of refrigerant. Or, due to an electrical fault, its compressor is not engaging when you turn on the system. Another possibility is that an internal obstruction is blocking the circulation of refrigerant.
Why does my air conditioner only make cold air at idle?
If that isn’t set to full cold (or is not getting there for some other reason) that would definitely cause bad performance when the engine warms up. Air is leaking thru the hot heater core, and that will definitely overwhelm A/C cooling.
Why does my car air conditioner blow cold air?
My air conditioning in my 2012 Kia Optima EX GDI non turbo runs fine while driving at higher speeds but at a stop light, stuck in traffic at low speeds it only blows warm or hot air. Only one fan on the car. What could be the problem
Why does my Ford Mustang only blow cold air?
I need help finding why my car’s air conditioning (2011 Ford Mustang v6) is only blowing cold air at idling and not while driving on the highway when it’s 100°F here in Nashville. In the mornings while driving to work it blows cold air since it’s maybe 78° outside but once I get off work it’s 100°F and it won’t blow cold air.
Why does my air conditioner turn off while driving?
The air conditioning compressor will turn off at the slightest rise of heat due to excessive HEAD PRESSURE – however the engine will not show any signs of overheating. 99% of the time this problem is caused by insufficient air flow into the engine bay while vehicle is in slow moving traffic or at stop with engine and a/c on.