How to Know Your Car's AC Is Failing (Before You're Stuck in a Heatwave)

Written By Jan Zabel

When summer hits Iowa, the last thing you want is a car blowing warm air on a 90-degree day. If you’ve noticed your AC underperforming, making strange noises, or just not keeping up with the heat, it’s time to pay attention before things get worse.

Signs Your AC System Is Breaking Down

Most car air conditioning systems don’t stop working all at once—they slowly lose power. These are the top signs that your system needs attention:

  • Warm or inconsistent air

  • Weak airflow even at high fan settings

  • Unusual smells when the AC kicks on

  • Clicking, hissing, or squealing sounds

  • Only works while driving, not when idling

If you’re noticing any of these, your system may have a refrigerant leak, clogged condenser, worn compressor, or electrical issue.

Why AC Problems Get Worse in Late Spring

As temperatures rise, demand for AC repairs spikes. Moisture buildup and system leaks often go unnoticed in the cooler months, but once spring turns to summer, they hit full force.

The good news? Catching it early can save you from major repairs and a miserable commute.

What Happens During an AC Inspection at Shade Tree Auto

We don’t do patch jobs. A full AC service includes:

  • Checking refrigerant pressure and levels

  • Leak detection and seal inspection

  • Blower motor, compressor, and condenser testing

  • Temperature output verification

  • Cabin air filter check

Our digital inspections provide full transparency so you know what needs to be done—and what can wait.

Schedule AC Service in Urbandale, Grimes, or Ankeny

Learn More About Heating & Cooling Services

If you're near Grimes, Ankeny, or especially Urbandale where we’re expanding AC service availability, now’s the time to book. Stay cool and safe on the road this summer.

Jan Zabel
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