AC problem 01 Yukon XL 5.3 w/rear air

[MassHoe04]

Where am I looking for this control module? Are you referring to this?

Yes, that is the front control module.
We have a lot of experienced folks here. @rockola1971 is an excellent resource for diagnosing electronic control systems.

 

[LordWayback]

You likely would NOT need shims with a new clutch. Id be more worried about the possibility of compressor being locked up causing the clutch to slip.

I was referring to shimming the clutch that’s already on there a clapped oem part> Chinese knock off that’s not even carried at a parts store or branded.

 

[LordWayback]

up a bit and to the left of the actuator hes taking off.

I have a O1 my system looks completely different you talking about this?

 

[LordWayback]

If so I don’t think mine is any good looks like corrosion?

 

[Scottydoggs]

If so I don’t think mine is any good looks like corrosion?

that looks like a problem to me.

 

[LordWayback]

that looks like a problem to me.

I cleaned all that junk off still nothing above feet level in the front vents I’m at a loss

 

[LordWayback]

After a short amount of time running it like 30 seconds with time to cool it reached past 140* with no compressor actually activating to circulate hot air into the compressor and make it hit normal temps. At this point it’s either a locked compressor or badly slipping clutch to be going that hot without actively circulating the heat , another update the blower isn’t working out of the vents in the front besides side ones and feet ones. I think the switch board as suggested earlier may be messed up both blower fans are working as they should. I’m thinking it’s actuators or the switch being bad but I’m assuming I can ignore that as it won’t stop the compressor from working Atleast for now. from what I can tell the clutch is getting power. My money is on the compressor locking up which sucks, it sounds like the oem coil is in fact activating but I’ll know for sure if the compressor is shot by late Saturday.

 

[LordWayback]

On Saturday if possible I’ll double check the refrigerant levels if they’re normal combined with all the diagnostics we’ve done here/ parts it’ll be down to a new compressor/high-low pressure switches. If a new compressor is required I’ll sadly have to take it in cannot evacuate the system myself and at that point it’s already in the shop might aswell install it for a few hundred more.

 

[LordWayback]

Well shit, dead compressor that belt was brand new before I tried to keep running the AC.

 

[LordWayback]

Well shit, dead compressor that belt was brand new before I tried to keep running the AC.View attachment 374203

Actually upon closer inspection the clutch exploded it’s all slumped over n stuff.