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1999 Honda Civic Clanking niose when I turn on the AC in ho

Tiny
SIDD999
  • MEMBER
  • 1999 HONDA CIVIC
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 131,000 MILES
I recently purchased this car. It went fine for a week and all of a sudden there's this clanking noise coming near the engine area. I couldn't figure out what's exactly happening. I drove it again without turning on the AC and the noise disappeared. I turned on the AC and the clanking noise was up again.I checked it a few times by turning ON the AC and turning it OFF again and YES, it makes the noise only when the AC is ON.
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Saturday, January 16th, 2010 AT 2:53 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be coming from the AC compressor

Noise from the compressor usually means the compressor is on its way out. But noise can also be caused by cross-contaminated refrigerant (operating pressure too high), air in the system or the wrong type of compressor lubricant.

Noise can also be caused by hoses or other parts rattling against other components in the engine compartment. Check the routing of the hoses, support brackets, etc, to pinpoint the noise
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Saturday, January 16th, 2010 AT 3:03 AM

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