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Author
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Topic: AC Compressor advice needed
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BCINGUU
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Member # 2397
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posted
 
 
Hello all,
The AC compressor and/or clutch on my 90GT is starting to make a "grinding" noise. I think that's a bad sign. It is factory air and has over 150,000 miles on it so I'm guessing its bearings are failing.
A reman compressor from Autozone lists around $200, ouch. This is a convertible so I never use the AC, although I was thinking about keeping it on the car for resale value.
I think my options are:
1. Buy somebody's parted-out AC compressor
2. Fork over the $200 to Autozone
3. Just get a clutch (?)
4. AC elimination kit
Any thoughts on this? Your opinions are appreciated.
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93 Cobra #4563 347ci 12.0@118 505rwhp 524tq
90 GT "Saleen Cobra" style convertible 347ci
67 GT "Eleanor" style coupe 347ci
Posts: 1425 | From: San Jose, CA | Registered: Jan 2003
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88gt
Custom
Member # 579
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posted
You can always take the belt off and spin the compressor by hand to see if that is what's making the noise.
I have a used compressor I'd sell cheap also if you're interested.
If I were you though I'd just do the delete kit. It seems to me like most people that buy those cars don't intend on having the air conditioning work, it's just sort of a bonus. I'm not sure if the cost of fixing it is going to be worth it in the long run in terms of re-sale value.
Posts: 1482 | From: Santa Clara/Bay area | Registered: Nov 2001
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JohnB
Tech Moderator
Member # 969
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posted
More than likely, it's the clutch, not the compressor. Like 88 said, pull the belt, spin it by hand. ![[Smile]](smile.gif)
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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BCINGUU
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Member # 2397
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posted
Ok, I pulled the belt and spun the pulley. It is making a grinding sound (and feel) as if sand were in there. Not a lot, but noticeable. I do not think there is sand in it. But very small flakes of something that looks like metal come out of it.
When running the car, the grinding sound gets louder when I turn on the AC.
Not sure if this means it is the clutch or the compressor, but I'm guessing I need to replace the whole unit. Don't know if I can replace the clutch separately, or if it would be worth the trouble.
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93 Cobra #4563 347ci 12.0@118 505rwhp 524tq
90 GT "Saleen Cobra" style convertible 347ci
67 GT "Eleanor" style coupe 347ci
Posts: 1425 | From: San Jose, CA | Registered: Jan 2003
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Wildfire532FB
CAFords OG
Member # 1482
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posted
I am replacing my AC compressor for the second time since i had my Mustang ![[Mad]](mad.gif) I've already spent 500 bucks for a new compressor, dryer, new manifold hoses, and new orings and a orifice tube. Tomorrow i might be spending 300 just to get ti filled If this shit goes out in a year like the last compressor i am tearing it off for sure even if this is my daily.
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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JohnB
Tech Moderator
Member # 969
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posted
The AC clutch is your problem. It takes 10 mins tops to swap it out. You can rent/borrow the tool from Autozone. All it takes is the removal of the 13mm nut inside the center recess, thread in the removal tool, done deal.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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