My car is making a grinding sound that sounds like a pulley. When I turn the A/C on the noise is reduced about 90%. What is this? Thanks in advance.
Corey
2007-12-02 13:59:19 · 6 answers · asked by corey 1 in Cars & Transportation ➔ Maintenance & Repairs
Also, the book labor time would be helpful for whatever the fix is.
2007-12-02 14:04:13 · update #1
The a/c compressor clutch bearing is worn out. The reason the grinding sound goes away is that the clutch is magnetically "locked" when you turn on the a/c. When the a/c is turned off, the compressor clutch magnet releases and the pulley continues to turn, but the clutch does not, the pulley rides on a bearing within the clutch, thus, creating a grinding sound. The clutch on some compressors can be replaced. Being the car is right at 9 years old, it may be more cost effective to replace the whole thing, that is if you feel like the car is worth putting the money in it. A re-manufactured a/c compressor can run anywhere from $250 to $400 depending on the model plus the mechanic's labor rate for installation, evac and charging the a/c system. If you go that route, I strongly suggest that you replace the drier as well. It is a good rule of thumb to replace them as a pair. If all other components are fine, they will be OK. The figures the other guys below my answer are giving are kinda high, I don't charge nowhere near that much at my shop.
2007-12-02 14:05:29 · answer #1 · answered by bobby 6 · 0⤊ 0⤋
I would look at the automatic belt tensioner. Sounds like when you turn your A/C on its evening out the pressure, or balancing the pully depending on how close it is to the A/C compressor. Or look at the next accesory drive closest to the A/C pulley... Maybe powersteering or alternator. If either one has a problem and the bearings are breaking down, then when you turn the A/C on its helping pull the pulley. hope this helps.
2007-12-02 14:08:13 · answer #2 · answered by Fordguy_81 2 · 0⤊ 0⤋
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2016-12-10 10:46:25 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It's the compressor, to replace the compressor, expansion valve, the reciever and flush the system figure on around 1500.00 at a reputable repair facility.
2007-12-02 14:07:00 · answer #4 · answered by Anonymous · 0⤊ 0⤋
might be the belt tensioner for the a/c or might be the compressor clutch loose. or compressor pulley.remove belts and spin pulley by hand to check
2007-12-02 14:09:07 · answer #5 · answered by gotspeed7883 3 · 0⤊ 0⤋
In this case you're looking AC compressor replacing,receiver/dryer,evacuate/recharge system.......$1200 or so.
2007-12-02 14:10:21 · answer #6 · answered by polkan47 4 · 0⤊ 0⤋