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Old 02-01-2018, 04:26 PM
WCarp WCarp is offline
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Default A/C Compressor Noise, Intermittant

I'm having a problem with a loud hard to describe noise, kind of like chattering noise, coming from the A/C compressor on a 2011 Ranger with a 4 L engine for just maybe two seconds when the A/C is activated, only the first time when the engine is running when it's cold out. I replaced the A/C clutch cycling switch since according to a Tech it had a problem but apparently it wasn't causing the clutch chattering problem. It sounds like it is being rapidly turned on and off for around two seconds, only the first time when it's cold out. After the 2011 Ranger sets for at least a day, as I recall, then it will do it again.

Do you know what a person needs to do to fix it?

Thanks

Last edited by WCarp; 02-27-2018 at 08:14 PM. Reason: Correct error. Tried to add a sound file but couldn't.
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Old 04-28-2018, 02:16 PM
WCarp WCarp is offline
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Default Re: A/C Compressor Noise, Intermittant

According to an experienced A/C Tech, the A/C compressor makes a loud racket when turned on the first time when cold out because it is slugged by liquid refrigerant which forms in suction hose when cold. This is damaging to the compressor. The suction hose is too low in the system due to poor design!
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Old 04-29-2018, 10:14 AM
dvrich dvrich is offline
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Default Re: A/C Compressor Noise, Intermittant

Quote:
Originally Posted by WCarp View Post
According to an experienced A/C Tech, the A/C compressor makes a loud racket when turned on the first time when cold out because it is slugged by liquid refrigerant which forms in suction hose when cold. This is damaging to the compressor. The suction hose is too low in the system due to poor design!

There is a large accumulator filter/drier to prevent liquid from getting to the compressor. That would be a problem on all Rangers used in the north according to your "technician" and it certainly is not! Sounds like a clutch solenoid.
Find another technician btw.
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