a/c compressor still cooling but making a whirring noise

[rolo95]

my 2002 TB LS
165k miles
i think is time to replace my a/c compressor before it dies, it sound like the bearing is going out, it makes like a whirring noise , only when it engage when i turn on the a/c.

remanufacturer ? or new ?
if i can save some bucks i take even a junkyard one
any stuff that need to be replaced with it ? like O rings, expansion valve or even the accumulator canister ?

btw, mine have a little control on the back for like an a/c vents but that fan blows almost none , so no coolling for the people in the back seat.

 

[Mooseman]

I've had no issues with new ones but have with rebuilts. It is much better to replace it before it grenades and sends shrapnel all over in the system. It's usually recommended to replace the receiver/dryer as well as the orifice tube on case of wear and debris.

 

[rolo95]

Rockauto?

 

[Mooseman]

Sure. Just don't buy Four Seizin.

 

[RedEnvoyDenali]

before you spend any money on a new ac compressor double check the electric clutch. This is the only part that rotates all the time and they do wear out.

 

[rolo95]

So you can replace just the clutch??

 

[Mooseman]

Yes. Check for.my thread for the clutch from AliExpress

 

[rolo95]

I searched but can't find it

 

[Mooseman]

A/C Clutch Kit from AliExpress

Continuing from this post, starting this thread to document and review this clutch kit...

gmtnation.com

 

[rolo95]

Thanks moose man, strange that i search and do not get the results.

Ok the clutch do not engage anymore, so I'm cooking in south Texas weather until I replace that compressor

 

[rolo95]

Do I need to replace this also?

2002 CHEVROLET TRAILBLAZER 4.2L L6 A/C Expansion Valve | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

And just to the compressor or the
Compressor and accessories like this one

A/C Compressor Kit UAC KT 4415A

Genuine, OEM & Branded Aftermarket Parts at the best prices. Includes a 2-year warranty and easy returns. Shop Today!

newparts.com

 

[Mooseman]

You won't have an expansion valve unless you have an EXT, which is usually not replaced unless it's defective. I also doubt you need that whole kit. The compressor and receiver/dryer with some replacement oil is enough. You would need to replace the condenser if the compressor grenaded and sent shrapnel all over the system. I do recommend that you replace the orifice tube in case it did pick up some junk and the orifice wore a bit.

More Information for UAC EX5151C