AC Scraping sound!

Did a quick search and didn't find much. Sometimes when I turn the AC knob on, I hear a metal rubbing scraping sound come from the engine bay. I'm thinking it might be the AC clutch or compressor. It's a new sound, has just started recently and It doesn't do it all the time.

Truck is a 2010 with just over 11K miles on it. Didn't expect to hear sounds like this so soon

 

I have the same deal on my 2010 4.0L, but my trucks warranty is up, so I just have to fix myself. If you take yours to the dealer,they will fix it under warranty. Let me know if and when you do that, and please let me know what the prob is so I can possibly fix mine. But it does sound like the clutch.

 

I'll let you know if I take it in to the dealer so you can fix your truck! I'm not so sure I want to get it fixed at a dealership. Had too many bad experiences. Do you think it's a pretty simple fix or not really?

 

One thing for sure is that it will be a free fix. Most likely the dealer will replace the AC compressor completely and just recharge the system. That is if they hear the noise to begin with. As long as you report it once to them, then it fails completely, out of warranty, they are still liable. I'm not going to say the fix is easy, but replacing an AC clutch doesnt require you to open the system up, so you have that going for you. If you have the know how to disect that portion of the AC and inspect it, you can probably pin point the diagnosis.

 

mine makes quite a racket too. zzZZZUUNNNCK

 

Mine makes an annoying noise if I engage the AC right after startup before the engine has had a chance to idle down.

 

Yup, that's it!

Good point, that's when it makes it for me too, I never caught that. It's right after start up. So is that a clutch issue, or do I just have to wait from now on?

 

I hate to sound like a Toyota service writer, but I think it's normal.

I don't get it if the AC is ON and I start the engine up. I only get it if I hit the button within the first 30 seconds or so after starting while the engine is still idled up.

I'm sure the noise is from the clutch, but I'm not convinced that I'd refer to it as an "issue"

 

Yeah exactly, no sound if the AC is already on. I figured maybe it does make a sound but I can't hear it because of the sounds during ignition..

I guess I'll wait a bit before turning the AC on, or turn it on before starting the ignition from now on.

Thanks for your help tho!