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The compressor on mine (3.0L) is located on the bottom left side on the front of the engine as you are looking from in front of the car. It will have two metal pipes that convert to rubber hoses connected to it in near vicinity to each other and of course a pulley on the front connected to a belt. The pulley will continuously spin while engine is on but the part inside of the pulley will only spin while A/C button is pushed.
It doesn't sound like it is engaging to me, need to find out if voltage is being supplied to the compressor clutch. If voltage is being supplied, then bad compressor clutch. If no voltage being supplied, probably bad AUX fan. Either one can be $expensive$! The fact that you don't experience a kick-down of engine rpm makes me think it might be AUX fan as you would still hear/feel a kick-down if compressor clutch is bad because that function is handled seperately from the compressor.
My A/C compressor clutch went out before on me and was looking at $500ish for a new compressor just because of that little crappy clutch on the end. I just replaced the clutch only with an aftermarket generic that seemed to be same dimensions and haven't looked back since. $39 by the way was my total cost for that fix.
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2010 Lexus RX350 still new
2003 BMW X5 3.0i w/sport package w/68K miles. (gone Thank God!)
2002 Dodge Ram 2500 4X4 cummins diesel w/198K miles, custom repo truck
2009 Scion tC w/46K miles
2007 Suzuki SV650 custom streetfighter
2000 Lexus GS400 w/165K miles
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04-12-2010, 06:12 PM
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