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Run it now, while the demand is low

The simplest test is also the most useful. On a 70°F afternoon, set the A/C to maximum cool with recirculate on, fan on high, and let it run for 10 minutes. Stick a thermometer in the center vent. A healthy system should hit somewhere between 38°F and 50°F at the vent. If it's pulling cooler than the outside air but not cold, the system probably needs attention.

Three signs you've got a problem

  • Air gets cold, then warms up after 5–10 minutes. Often a low refrigerant charge — and that means there's a leak somewhere, because A/C systems are sealed and don't normally lose refrigerant on their own.
  • You hear clicking or rapid cycling under the hood. The compressor clutch is engaging and disengaging too quickly. Usually a low charge or a failing pressure switch.
  • Musty or sour smell when you first turn it on. That's the evaporator core or cabin air filter. The fix is usually a new filter and an A/C cleaner treatment — quick, cheap, and dramatic.

What an A/C service actually involves

A proper A/C service isn't just "topping it up." We:

  1. Recover the existing refrigerant and measure exactly how much was in the system.
  2. Pull a vacuum on the system and watch the gauge. If vacuum holds, no leaks. If it drops, we trace it with UV dye or an electronic sniffer.
  3. Recharge to the manufacturer's exact spec — too little won't cool; too much can damage the compressor.
  4. Verify vent temperature and pressures meet spec at idle and at 1500 RPM.

Don't skip the cabin air filter

Most cars have a cabin filter behind the glove box that should be replaced annually. A clogged one cuts your airflow dramatically — even a perfectly healthy A/C system will feel weak with a filter that's two summers old. Ours is one of the items we always check on a courtesy inspection.

Why now matters

By June and July, every shop in town is fully booked with A/C work. Bringing it in during March or April means same-week service and a much shorter list of repairs to choose from. If your A/C was even a little weak at the end of last summer, get it looked at now.

Beat the rush.

Book an A/C performance check before the heat hits — we'll measure vent temps, system pressures, and tell you straight what (if anything) needs attention.

Book Service Learn about our A/C service
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