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2014 Kia Optima Ex
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56 Posts
Discussion Starter · #1 ·
Hi everyone. Today my Optima started making a strange sound. It only happens when the A/C is on and I start accelerating from a stop. It is like a creaking moaning sound.. Take the A/C off and it goes away. Even with the fan on the sound is minimal. Recently had new valve cover put on if that makes a difference. Thanks for any help.
 

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2011 Kia Optima
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3,575 Posts
The A/C compressor is working/running all the time as there isn't an electric clutch. Having said
that, it's possible as more cold air is called for, the compressor is working harder to supply the needed demand and more strain, albeit minor, on the engine.
Maybe with the VC replacement, check the belt and pulleys closely to see if any contaminants
on the belt.
 
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