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Air conditioner
2007 Toyota 4Runner

Air conditioner

(2007 Toyota 4Runner)
Fan and heater works. AC light show ac is on. Blows air. will blow more as if I adjust the tempature. Was working very well (good cold air) prior to not working. So everything works except it only blows cool air (not cold air). no noises or leaks.
How long have you had this problem? started christmas eve. 3 days ago
Tags: see above, toyota, 4runner
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Popular Answer
on December 26, 2018
Low refrigerant charge.
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General Diagnosis
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on December 26, 2018
Low refrigerant charge.
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on December 26, 2018
Air conditioning problems can originate by one of the following general areas:

1) A problem with the refrigerant system. Meaning, the refrigerant used has escaped and there is not sufficient refrigerant to pressurize the system properly, resulting in hot air (over-simplified, but in the end, that is the result). When this happens, the system must be checked for leaks, the leaks repaired, and the system recharged.

2) A problem mechanically or electrically with the under hood components. If the compressor has failed, it will not allow the system to operate. Further, if the system becomes contaminated with debris from a failed compressor, this can be even worse. Electrically, the coil of the compressor may not be working properly, or a cycle switch could fail preventing the system from operating. If your condenser fan is not working, the system may not work properly also.

3) Climate control problem inside the vehicle. If the system that operates the heating, ventilation and air conditioning system fails to operate properly, then the under hood components may not be turned on or off properly, keeping the cold air from being produced.

Only testing these systems will yield a direction and an eventual result. It seems like the climate control system is doing the right thing as you adjust temperature, yet, if there are cold temperatures being produced by the air conditioning compressor and the cold air is not getting inside the cab of the vehicle, then a temperature blend door issue could be present. Good luck.
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