Automotive Air Conditioning Information Forum

Hey, you’ve done a great job piecing this together — your logic is actually pretty sound.

What you're describing does sound like it could be related to either overcharging or a cooling fan issue, possibly even both. When an A/C system is overcharged, it can definitely build excessive pressure ...

Yes, it could definitely be a leaky O-ring. O-rings can dry out, crack, or lose their seal over time, especially on older cars like a 2011. That spot where the high-side line meets the condenser is a pretty common place for O-ring failures.

That said, your mechanic might suspect the condenser ...

Absolutely agree, Tim!

Using proper gauges is essential when working on auto AC repairs. It's the only way to accurately measure both low and high-side pressures, which are crucial for diagnosing and fixing AC issues effectively. Investing in the right tools not only ensures safety but also helps ...