My 2005 Yukon XL

[dbrannon79]

My 93 has this issue were the clutch magnet is getting weak. when the engine is cool I can turn the ac on and it will work fine until it has to cycle. then it doesn't have the strength to suck the clutch back in to spin the compressor. I have another clutch for it, just haven't gotten out there to swap it out!

 

[dbrannon79]

with your clutch hub removed, if you can get to the pulley bearing and pop the seal off to expose the inner rollers of the bearing I would attempt to grease that bearing. chances are it got hot enough to cook the grease. the bearing is press fitted into the pulley just like the old steel idler pulleys only this bearing is special for the clutch (size wize).

 

[Will L.]

My 93 has this issue were the clutch magnet is getting weak. when the engine is cool I can turn the ac on and it will work fine until it has to cycle. then it doesn't have the strength to suck the clutch back in to spin the compressor. I have another clutch for it, just haven't gotten out there to swap it out!

Ideally the clutch wears out just as it goes out of spec. But assembly line adjustment errors happen. You might be able to adjust the clutch. The he problem is, if you get it to tight, it won’t want to shut off. So if you adjust it, go from the middle to the upper range of clearance. Adjust it same procedure as when replacing one.

When done adjusting, hit it with a liberal dose of brake cleaner. If it still has issues then order up the new assembly.