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| Mechanical Maintenance (Oil, Fluids, Break-In, Servicing) Everything related to the mechanical maintenance of the FR-S and BRZ |
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10-10-2014, 10:53 AM
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Join Date: Sep 2014
Drives: 2013 FR-S
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Whirly noise. PLEASE HELP
I'm at 40k miles and 25k of those are with the Vortech kit. I recently changed my crank pulley (perrin) and accessories (nst). I also put on a new belt. Everything was normal for about 3000 miles. Now I hear a whirling chirping sound that seems to be coming from a/c compressor. Its hard to tell because it only likes to do it under load. Typically 2500-5000 rpms. It also does this a lot more on decel. It has got progressively worse over the last two weeks. Seems to not do it nearly as much on colder days. It also seems to go away after the engine bay is heat soaked. I have noticed now that twice when I first turned my A/C on it blows a little bit of frost. It has never done this before. It seems that running the A/C instigates this noise. I've been watching my gauges (P3) and have not noticed anything abnormal. Ive double checked all installed after market pullies' torque.
Tensioner? Idle pulley bearings? A/C clutch? A/C pulley bearings? I'm OCD. Please help. lol |
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