Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1996FORWARD CONTROL 6.5 Y, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)GENERAL SERVICINGHVAC SYSTEM - COMPRESSOR REFRIGERANT OIL CHECKINGCHECKING COMPRESSOR OILHARRISON HD6/HT6 6-CYLINDER, & V5 5-CYLINDER
1996 Chevrolet Forward Control 6.5 Y, Automatic
HARRISON Hd6/Ht6 6-Cylinder, & V5 5-Cylinder
1996 Chevrolet Forward Control 6.5 Y, AutomaticSECTION HARRISON Hd6/Ht6 6-Cylinder, & V5 5-Cylinder
- Operate system for several minutes to stabilize system, if possible. Turn engine off. Discharge A/C system, using approved refrigerant recovery/recycling equipment. Remove compressor. Drain refrigerant oil from compressor through suction and discharge ports, and drain plug. Measure amount of oil drained.
- If no oil leaks exist and more than one ounce is drained, add drained amount using new oil. If less than one ounce is drained from compressor, add 2 ounces of new oil.
- If replacing A/C components, add specified amount of refrigerant oil to system. See HD6/HT6 & V5 COMPONENT REFRIGERANT OIL CAPACITIES table. Install drain plug and compressor. Evacuate and recharge system. Perform leak test.
NOTE:
Approximately 3 ounces of refrigerant oil, suspended in refrigerant, will be lost due to a large, abrupt leak. When replacing faulty component, add required amount of oil for component plus 3 ounces of oil to component. If oil cannot be easily added to component, add to accumulator/receiver-drier.
HD6/HT6 & V5 COMPONENT REFRIGERANT OIL CAPACITIES
| Component | Ounces | |||
|---|---|---|---|---|
| Accumulator/Receiver-Drier | ||||
| "B", "G" & "N" Bodies | 3.5 | |||
| Except "B", "G" & "N" Bodies | (1) | |||
| Condenser | 1.0 | |||
| Evaporator | 3.0 | |||
| "U" Series | ||||
| Rear Evaporator | 2.0 | |||
| Rear Evaporator Lines | 1.0 | |||
|
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RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.