Why is my car AC not cold enough on hot, humid Ann Arbor days?

When your AC blows cool but not truly cold on hot, humid Ann Arbor days, the system may be slightly low on refrigerant, have a weak compressor, or suffer from restricted airflow due to a dirty condenser or cabin filter, or have a fan problem.

• Customer reported symptoms: AC not cold enough, blows cool but not cold, takes too long to cool, AC is poor in humidity.
• Michigan humidity: High humidity forces your car's AC system to remove more moisture, which exposes marginal components and a low refrigerant charge.
• Common causes: Minor refrigerant leaks, worn AC compressors, dirty condensers, weak blower motors, or a clogged cabin filter that reduces air volume through the evaporator.
• Solution: A performance test that measures vent temperature, AC system pressures, and airflow is the best way to determine whether you need repairs or simply an AC recharge.

Hoover Street Auto Repair offers complete auto AC performance testing and recharge services to ensure your system can handle Ann Arbor’s humid summer heat.