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A/C stops blowing cold when it's raining

Motor Vehicle Maintenance & Repair Asked by Thomas Jones on August 4, 2020

I have a 2011 equinox. Had a accident couple years ago involved with front end. Ever since then when it rains my AC will stop blowing cold air. never heard of anything like this. anyone have any explanations? Plz help

2 Answers

"Rainy" air contains more water, which is harder to cool, so your system may no longer be able to keep up with the cooling requirements during wet weather. Your accident maybe have damaged some of your AC components—my suspicion would be you have a refrigerant leak. I would recommend having the system vacuum-tested to confirm that it actually holds pressure.

Answered by Huesmann on August 4, 2020

High humidity can condense then freeze on the evaporator coils more readily than dry air. This blocks the air flow . To avoid this keep fan on high with all vents open. Possibly, from the accident, there is some distortion to a vent that restricts air flow, to or from the coils.

Answered by blacksmith37 on August 4, 2020

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