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hovie · #1 05-04-2009, 01:24 AM

When my truck is idling the middle pulley that the serpentine belt goes around will turn than stop than a few seconds later turn and stop and so on and so forth. It's noisy. Is this suppost to happen?

Thanks

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iwhitne · #2 05-04-2009, 01:58 AM

are you sure it's not the A/C compressor turning on and off?

hovie · #3 05-04-2009, 02:04 AM

I actually thought it was my A/C compressor. Is it supposed to turn on and off every few seconds like that?

95RamIT · #4 05-04-2009, 02:22 AM

Quote:

Originally Posted by hovie

I actually thought it was my A/C compressor. Is it supposed to turn on and off every few seconds like that?

yea if its your compressor it will come on and off. when it starts and stops it makes a clicking noise.
not the exact one in your truck but the idea;
http://www.2carpros.com/images/ac_compressor_clutch.jpg

nolazach · #5 05-04-2009, 10:21 PM

check your R134a levels, you can get a can with a gauge on it for like $20. If you are a little low on freon your compressor could cycle more, it could also need more oil. Of course if you are low, then that means there is a leak, but usually the can stuff will have some leak finder and sealer in it.

I was thinking when I read the thread title it was going to be the Water Pump, it makes a noise when it is bad, but you are describing the compressor.

dhvaughan · #6 05-04-2009, 10:43 PM

mine cycles on and of frequently. its annoying, but i think its normal.

88dakv6 · #7 05-05-2009, 11:51 PM

Quote:

Originally Posted by dhvaughan

mine cycles on and of frequently. its annoying, but i think its normal.

Its not, you are low on freon.

hovie · #8 05-06-2009, 06:46 AM

My A/C does not get cold so I know I'm low on freon but how well do those cans work? Is it better to have the system drained completely somewhere and re-filled? I know they have machines for just that.

zman17 · #9 05-06-2009, 11:16 AM

Unless you have gauges and a pump you are better off taking it somewhere. They will check for leaks also. And if yours is low, most likely it's the evap core.