AC not working on low speed

2016 HYUNDAI I10
67,000 MILES • 1.2L • 2WD • MANUAL
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RAM PRATAP
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  • 2 POSTS
AC is working fine when rpm reach 2000 or above but when it is on idle speed AC cooling is negligible. Refilled with Freon top-up fan is working checked whole electrical system. No other faults found. Mechanics are saying that it need compressor replacement. Please suggest the other way.
May 27, 2017 at 11:40 PM
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STEVE W.
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  • 15,116 POSTS
Get the AC pressures checked at idle and higher rpm. It could be low or overcharged, or a weak compressor.
May 28, 2017 at 7:14 AM
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RAM PRATAP
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Thanks Steve. Got to know compressor is weak. Can someone guide how compressor be troubleshoot.
May 28, 2017 at 8:01 AM
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STEVE W.
  • CERTIFIED EXPERT
  • 15,116 POSTS
Put a gauge set on it, then watch the pressures as engine rpm rises. A weak compressor will show as low pressure until it revs up.
Not hard to change on most vehicles.
May 28, 2017 at 6:57 PM