Can low refrigerant cause a noise from the A/C compressor? -
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post #1 of 4 Old 10-22-2010, 04:10 PM Thread Starter
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1990 XJ Cherokee 
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Can low refrigerant cause a noise from the A/C compressor?

My Jeep is making noises from the compressor when I use the defroster and I'm really hoping it's not my compressor about to seize because I can't afford a new one and I need it for winter (which it's feeling an awful lot like today)...So my question is what else can cause a compressor to make growling noises? The thread title is just because I'm sure it hasn't been recharged in forever, but if there's anything else that could do it, chime in please

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post #2 of 4 Old 10-22-2010, 04:54 PM
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1998 XJ Cherokee 
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If it's the 90' Cherokee you might as well go ahead and replace the whole AC system and then have it charged professionally. Don't use the home recharge kits, they don't work! The new systems use R134A and the oil is different and it doesn't mix well with R12 even if you manage to have the old stuff evaced. Not to mention the seals aren't made to handle R134. That's why I don't recommend just doing the 'conversion kit'. You can do it but it will probably just leak out or burn up your compressor, or both.

You could try to find R12 but it's unlikely and expensive.

Oh and yes it can make a noise if it's low.

1998 Cherokee Sport 4.0L-AW4-NP231-C8.25--Black, trim removed and chopped. 31" Goodyear Wrangler Duratracs. 3" lift coming soon.
1984 Grand Wagoneer--Sold. I'll miss the old girl.
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post #3 of 4 Old 10-22-2010, 05:18 PM
AZ Jeff
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You have a vehicle that is almost 20 years old. There is a VERY good chance that the compressor is dying of old age, even if it's filled to the correct levels with refrigerant and oil.

BE CAREFUL. If you do NOT fix it, the compressor WILL GRENADE. Also, the longer your compressor runs while growling, the greater the chances are that the particles being shed by the accelerated wear of the compressor will spread throughout the AC system, resulting in the need to flush and/or replace more components to restore system function.

I don't own an XJ any longer, but I still think they are the best of all the Jeep products ever made. My XJ was my favorite vehicle in my 50+ years of driving.
So...I stick around and give advice.
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post #4 of 4 Old 10-22-2010, 09:23 PM Thread Starter
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Damn. What I figured but was still hoping otherwise. She sure is getting expensive lately >_<
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