scraping noise on low AC setting

[lxxiv]

i have an 05 yukon and it sounds like something is scraping against the fan whenever i turn on the ac. i had it checked out by the dealer and they tell me the same answer everytime. that its the liquid changing to gas. but tahoes don't make this sound. nor does any other vehicle that i've driven in the past. any ideas?

[2000CAYukon]

Is this something you hear inside the suv? Is the noise coming from near the glovebox?

Or is the noise coming from the engine compartment?

//2000CAYukon

[lxxiv]

it sounds like its coming from the engine compartment through the air vents.

[ncyukon28]

Originally Posted by lxxiv

it sounds like its coming from the engine compartment through the air vents.

Sounds like what just happen to mine..compression is shot in it. Need to replace it.

[YukonGMC]

I've had the same noise in mine ('01 YXL) for a couple of years. Under the glove box, inside. Replaced the compressor and fan motor and still have it. Sort of a scraping, gas leaking type noise. A/C works fine.

[rgloston]

All:

I've had that metal scraping sound on my '02 Yukon about 2 years ago. After Gerry Lane GMC (Baton Rouge, LA) looked at it (nothing found), Capitol GMC (Baton Rouge, LA) looked at it (nothing found), I went to Don Bohn (Marrero, LA) where the guys there are better about troubleshooting. The service manager I ALWAYS talk with had his techs take the entire system apart, after I made the noise come back for them to hear. After two days, they found that GM had a revised AC compressor for my model SUV. My Yukon was @ just under 36K miles when this problem surfaced. GM shipped a new AC compressor, and have had no problems since. My yukon now has 90K miles on it.

If anyone is currently experiencing this, have a GM service center take the system down, change the orfice tube filter, and change the AC compressor. That's what's been done on my truck. Happy to report that I've had no problems since!

Just my two cents!

[Lightgomez]

Ok, I know this doesn't sound as technical as the rest of your replies...But have you tried looking behind the dash or behind the glove box for something that MAY have fallen back there..ie: a piece of paper or something. The only reason I say that is that b.c..as silly as it sounds, it happened to me.....hahaha

[rgloston]

light... I thought I had something drop, and also thought the blower had an issue, but the service manager @ Don Bohn (Marrero, LA) found that there was a revision on the compressor. GM should have this listed in their TSB by now. At least Don Bohn has seen quite a few '02 models with this same issue. I hadn't had problems since.