| Application | Specification |
| Compressor Type | Harrison HR110-MD 4-Cyl. |
| Compressor Belt Tension | (1) |
| Refrigerant (R-134a) Capacity |
| Pickup & Sierra | 32 ozs. |
| Crew Cab & Utility | 36 ozs. |
| Suburban, Tahoe & Yukon |
| With Rear Unit | 64 ozs. |
| Without Rear Unit | 36 ozs. |
| System Oil Capacity (2) |
| Pickup & Sierra | 8 ozs. |
| Crew Cab & Utility | 8 ozs. |
| Suburban, Tahoe & Yukon |
| With Rear Unit | 11 ozs. |
| Without Rear Unit | 8 ozs. |
| System Operating Pressures (3) |
| High Side | 320 psi (22.5 kg/cm 2 ) |
| Low Side | 28 psi (2.0 kg/cm 2 ) |
| (1) Belt tension is adjusted automatically by a spring- tensioned idler pulley. Belt adjustment not required. (2) Use R-134a PAG Refrigerant Oil (Part No. 12345923). (3) Specification is with ambient temperature at 80°F 27°C), relative humidity at 60 percent and engine speed at 2000 RPM. |
| (1) | Belt tension is adjusted automatically by a spring- tensioned idler pulley. Belt adjustment not required. |
| (2) | Use R-134a PAG Refrigerant Oil (Part No. 12345923). |
| (3) | Specification is with ambient temperature at 80°F 27°C), relative humidity at 60 percent and engine speed at 2000 RPM. |
A/C SYSTEM SPECIFICATIONS