AC clutch issues

[Bruces]

My ac clutch has locked up and won’t disengage. Been way too cold so I can’t imagine why it came on to begin with but it is locked up. I have disconnected power to the compressor and can’t get it to disengage.

I have ordered a replacement clutch from rock auto but before I get it delivered has anyone replaced just the clutch? Does it require a puller specific to this type compressor? If so does advance, orielly or autozone have the rental tools?

ive watched some online videos but can’t find any specific to hummers or h3s.

 

[chaos254]

Ac will engage when using defrost

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[Bruces]

Yeah I know normally it does but it should’nt when below freezing temps should it?

 

[rascole]

When ever the defrost is on, the AC comp is will turn on. That's how the water vapor is removed from the cabin.

 

[Mb30sdl]

I Lost my AC clutch on summer trip to Yellowstone, gladly it failed after Vegas (115*) drove rest of the way with twin 60 ac adapter. Blew it while racing f150 both of us with trailers on B road [emoji3][emoji3] ( I won [emoji3])
Picked up new compressor on the way and swapped it on campground in couple of hours.


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[Bruces]

I am just replacing the clutch and pulley since compressor is freezing me out.

 

[4speedfunk]

Unplug it.

 

[Bruces]

Still waiting in new clutch but tore into it yesterday. Air gap was wrong due to worn bearing on pulley so it was locked on. Unplugging it did not help as it needed no power to engage. Added a spacer to open airgap so good for now. Hopefully it will be warmer out when I tear into it again.