A/C System General Servicing: Specifications
SYSTEM REFRIGERANT CAPACITIES
| Specification |
Ounces |
| Chevrolet & GMC |
| Blazer & Pickup |
48 |
| "S" Blazer & Pickup |
40 |
| Suburban |
| Front System Only |
48 |
| Front & Rear Systems |
84 |
| Van |
| Front System Only |
48 |
| Front & Rear Systems |
72 |
| Astro & Safari |
| Front System Only |
32 |
| Front & Rear Systems |
48 |
COMPRESSOR OIL REPLACEMENT QUANTITIES
| Component |
Ounces |
| Compressor |
| General Motors |
| A-6 Model |
10 |
| DA-6 Model |
8 |
| R-4 Model |
6 |
COMPONENT OIL REPLACEMENT QUANTITIES
| Component |
Ounces |
| Accumulator |
|
| Condenser |
1 |
| Evaporator |
| All Other Systems |
3 |
| Receiver-Drier |
1 |
COMPRESSOR BELT TENSION (Lbs.)
| Application |
New Belt |
Used Belt |
| Chevrolet & GMC |
| "S" Blazer & Pickup |
| 4-Cyl. |
169 |
90 |
| V6 |
146 |
67 |
| Other Models |
| 6-Cyl. |
| 4.8L |
145 |
65-100 |
| V8 |
| Diesel Engine |
175 |
55-100 |
| Gas Engines |
145 |
65-100 |
COOLING SYSTEM CAPACITIES
(CHEVROLET & GMC)
| Application |
Quarts (Liters) |
| "S" Blazer & Pickup |
| 4-Cyl. |
| 2.5L Diesel |
| Standard |
11.5 (11.0) |
| With H.D. Radiator or A/C |
12.0 (11.3) |
| 2.8L |
12.1 (11.5) |
| Blazer & Suburban |
| 5.0 & 5.7L |
| W/O A/C |
17.5 (16.5) |
| With A/C |
18.0 (17.0) |
| 6.2L Diesel |
| With or W/O A/C |
24.3 (23.0) |
| 7.4L |
| W/O A/C |
23.0 (22.0) |
| With A/C |
24.3 (23.0) |
| Pickup |
| 4.3L V6 |
| With or W/O A/C |
10.9 (10.3) |
| 4.8L 6-Cyl. |
| W/O A/C |
15.5 (14.7) |
| With A/C |
16.0 (15.1) |
| 5.0 & 5.7L |
| W/O A/C |
17.5 (16.5) |
| With A/C |
18.0 (17.0) |
| 6.2L Diesel |
| With or W/O A/C |
24.3 (23.0) |
| 7.4L |
| W/O A/C |
23.0 (22.0) |
| With A/C |
24.3 (23.0) |
| Van |
| Astro & Safari |
| 2.5L 4-Cyl. |
10.0 (9.5) |
| 4.3L V6 |
13.5 (12.8) |
| All Others |
| 4.3L V6 |
11.1 (10.5) |
| 5.0 & 5.7L |
17.0 (16.0) |
| 6.2L Diesel |
| Standard Heater |
24.3 (23.0) |
| With Auxiliary Heater |
25.6 (24.2) |
| Forward Control Models |
| School Bus |
| 4.8L 6-Cyl. |
13.8 (13.1) |
| 5.7L |
15.5 (14.6) |
| 6.2L Diesel |
25.0 (23.5) |
| Motor Home |
| 6.2L Diesel |
24.7 (23.4) |
| 7.4L |
22.5 (21.2) |