When colder weather starts rolling into Milwaukie, most drivers stop thinking about their air conditioning system altogether. But your AC isn’t just for summer comfort — it also helps with defrosting your windshield and maintaining proper airflow in winter. If your system isn’t working right, you could be stuck with foggy glass, weak airflow, or unexpected electrical issues when the temperatures drop. Here are a few common auto AC problems and how to get ahead of them before winter hits.
1. Weak or Warm Airflow
If your AC isn’t blowing as cold as it should, it could be a sign of low refrigerant, clogged cabin filters, or a failing blower motor. While some drivers think this issue can wait until next spring, it actually affects your heater and defroster too. Getting your airflow checked now can save you headaches when icy mornings return.
2. Musty or Unpleasant Odors
A funky smell when you turn on your AC usually means moisture buildup, mold, or bacteria inside the system. Oregon’s wet climate makes this even more likely. A quick inspection and cleaning can clear out the odor and make sure your cabin stays fresh through the winter months.
3. Strange Noises When the AC Runs
Hearing rattling, squealing, or grinding? These sounds often point to a failing compressor, loose belts, or debris caught inside the fan. Catching these issues early can prevent bigger — and more expensive — repairs later.
4. Leaks or Visible Moisture
If you see water pooling under your vehicle or notice damp spots inside the cabin, your AC drain could be clogged. This can lead to electrical problems, mold growth, and reduced system performance. Fixing it now keeps your interior clean and dry for the winter season.
5. Electrical or Control Problems
If your AC switches, buttons, or temperature controls behave inconsistently, electrical components might be failing. These issues also affect your heater, so it’s important to diagnose them before the cold weather arrives.
Preparing your auto AC system now means smoother driving, safer visibility, and fewer surprises once the temperatures drop. At Nick’s Auto Care in Milwaukie, OR, our certified technicians can inspect, diagnose, and repair any AC issue — big or small.