A/C Problems

AngryLepercon · Oct 15, 2008

So I believe the bearing in the compressor is going up. It makes noise when the A/C is not on but when the A/C is on it sounds normal. My question is since I rarely ever use the A/C do they make a smaller belt that will bypass the A/C and just take the A/C off or should I go and replace it and pay for a new A/C unit and a recharge of the system?

Wicked_Sludge · Oct 15, 2008

its possible that loading the failing bearing is enough to stop it from making noise...but you should also check obvious things like the air gap between the a/c compressor clutch disk and plate....if the disk is dragging on the plate while the clutch is disengaged, it'll make a rubbing, grinding noise.

if you wanted to, you could remove the a/c compressor and run a belt for a truck without a/c...but functioning a/c is sure nice to have in wet and dry weather.

Ranger5.0 · Oct 15, 2008

lets not forget COLD weather....makes an ausome dehumidifier which helps clear things up on thouse freeze your balls Canadian mornings

Wicked_Sludge · Oct 15, 2008

thats what i meant by wet and dry conditions. defrosters are a lot more effective if backed by functioning a/c :icon_thumby:

4x4junkie · Oct 15, 2008

Compressors are expensive.
I think you can buy just the compressor clutch unit if the compressor itself seems fine (I would assume it comes with a new bearing in the pulley), although I'm not 100% sure. I've seen compressors sold without the clutch, I would think the reverse is true. This way you won't need to open up the A/C system.

Or you could also just grab the pulley and clutch off a junkyard truck.

MAKG · Oct 16, 2008

I wonder if that noise might be some other part of the serpentine belt system. Does the noise go away when turning sharply while stopped or moving very slowly? Engaging the compressor will put some more tension in the belt.

Maybe a vacuum-tube-in-the-ear trick might be in order?

While clutches are cheaper than compressors, idlers and tensioners are even cheaper.

AngryLepercon · Oct 20, 2008

MAKG said:
I wonder if that noise might be some other part of the serpentine belt system. Does the noise go away when turning sharply while stopped or moving very slowly? Engaging the compressor will put some more tension in the belt.

Maybe a vacuum-tube-in-the-ear trick might be in order?

While clutches are cheaper than compressors, idlers and tensioners are even cheaper.

Its there at idle and while moving its just hard to here over the hum of the M/T's but its there. I will have a friend of mine look at it for me. sometime soon.

A/C Problems

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