H3 Ringing noise after throttle cleaning

[nelsonhood]

I cleaned the throttle body today, together with changing the air filter (K&N) and spraying the MAF sensor with some MAF cleaner. After mount everything back (I took the throttle body out), I let the truck sit for about 2 hours. Then I took it for a test drive. No engine light, however, I noticed a ringing noise, like the ringing of a bell. Maybe the noise was there before but I didn't pay attention to it. Does it sound familiar to anyone? What could cause the noise?
<span style="color: rgb(0, 0, 0); font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; background-color: rgb(241, 241, 241);">[video=youtube_share;XM-FYhsi2UM]http://youtu.be/XM-FYhsi2UM[/video]

 

[Kyle]

Checked all the bolts? Could be a loose washer rattling back and fourth.


Sent from the top of a mountain in my h3

 

[rsc]

Sounds to me like a Craftsman 3/8 ratchet fell down into the engine. You did have all your tools and no extra parts at the end of the job, right?

 

[ArtHummer]

Sounds to me like a Craftsman 3/8 ratchet fell down into the engine. You did have all your tools and no extra parts at the end of the kon, right?

I'll second that

 

[nelsonhood]

I double checked all the bolts and counted my tools, they are all good.
It seems related to the AC compressor clutch. I found that the noise is only there when the AC is on. However, since the engine works fine and AC works fine, I decided not to bother for now.

 

[ArtHummer]

If you hear the noise only when the AC is on. It could the bearing in the AC clutch. Not sure if it is posible to change the clutch on the hummer but the new compressor is at least $700 buck.
I would just spray some wd40 and let it ride until clutch goes bad. Then see if you can replace just the clutch.