In this video we will be going thru replacing the air conditioning compressor on old body style (OBS) GMT400 type Chevrolet and GMC trucks with R-134a refrigerant. The particular compressor shown in this video has developed the belly leak so common with the GM Harrison division HT6 design of A/C compressors from this era. We will be performing the repair using only genuine OEM parts.
The truck illustrated is a 1999 Chevrolet K1500 Suburban with the 6.5L turbocharged diesel engine option, but the procedure and part numbers I share with you will be the same for any 1996 thru 2002 GMT400 generation OBS truck or SUV. So Cadillac, Chevrolet, and GMC for Escalade, Suburban, Silverado, Cheyenne, Tahoe, Sierra, W/T, and Yukon across C1500, K1500, C2500, K2500, C3500, and K3500 weight ratings.
The eBay and Amazon search links below are paid links, for which I may be compensated and earn a commission, if you choose to buy the parts and tools shown in this video thru them:
GM 89019367 (ACDelco 15-22124) A/C compressor assembly: https://ebay.us/zPnWri or https://amzn.to/3QHK1GW
GM 2724577 (ACDelco 15-2722) A/C compressor sealing washers (p/n when sold separate from compressor): https://ebay.us/vyMbgJ or https://amzn.to/4bvI2xy
GM 12356151 (ACDelco 15-118) R-134a refrigerant oil: https://ebay.us/Y0byyH
GM 12346287 (ACDelco 15-120) R-134a tracer dye: https://ebay.us/DhGj83
GM 3041827 (ACDelco 15-1119) low side service valve: https://ebay.us/AgdrYZ or https://amzn.to/4e8YWmO
Mastercool 81290 low side service valve core removal tool: https://ebay.us/1Riz9U or https://amzn.to/3yg23tB
Mastercool 98234 high side valve removal socket: https://ebay.us/gYkg8X or https://amzn.to/3JXdwRm
GM 52458184 (ACDelco 15-5438) high side service valve: https://ebay.us/CbtiFa or https://amzn.to/3yiBaoX
GM 89019183 (ACDelco 15-50812) high pressure cutoff switch: https://ebay.us/BN9EEO or https://amzn.to/3TdqEGZ
GM 52458768 (ACDelco 15-33289) high side service cap: https://ebay.us/Bi44tk
GM 52471377 (ACDelco 15-32645) low side service cap: https://ebay.us/T15wkM or https://amzn.to/4cU6JUy
GM C/K truck factory service manual: https://ebay.us/JxF6Zn
And if I've saved you some $$ here, consider some coins for the coffee tip-jar! https://ko-fi.com/drshock
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Chapters:
0:00 - Problem overview
0:50 - Removing the serpentine belt from the compressor pulley
2:52 - Recovering the R-134a refrigerant from the system
6:34 - Disconnecting electrical harness connections
7:33 - Disconnecting the compressor suction and discharge hose block
13:00 - Removing the A/C compressor from the mounting bracket
14:28 - Recovering PAG oil from the A/C compressor for measurement
17:02 - Service manual procedure overview
21:02 - Preparing the new replacement compressor
27:23 - Transferring the pressure switch from the old compressor
35:51 - Adding PAG oil to the new replacement compressor
40:25 - Reinstalling the compressor into the mounting bracket & wiring harness
42:41 - Reinstalling the compressor suction and discharge hose block
46:42 - Replacing the A/C service valves
52:37 - Performing a vacuum test on the A/C system
55:20 - Recharging the R-134a refrigerant into the A/C system
#drshock #obstruck #obstrucks #gmt400
Disclaimer: DrShock, the alias for the human content creator for this YouTube channel, is not responsible for any damages, injuries, losses, or liabilities associated with any repairs, upgrades, or maintenance performed on yours, or any other, vehicle whatsoever. No warranty, express or implied, is made as to the accuracy or completeness of any information provided within this channel. Viewing and using the “as-is" information of this channel is totally at your own risk. Always wear personal protection equipment and follow appropriate vehicle manufacturer service manual guidelines with original manufacturer parts only when performing any repairs, upgrades, or maintenance upon any vehicle.
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