What kind of refrigerant does a 2002 Dodge Caravan take?
The 2002 Dodge Caravan uses R-134a refrigerant (HFC-134a) and requires PAG oil in the system. It does not use the older R-12 refrigerant. For any topping off or recharge, verify the exact specification on the vehicle’s service label or manual.
Refrigerant type for the 2002 Dodge Caravan
The 2002 Caravan’s air conditioning system was designed to run on R-134a (HFC-134a). R-12, the older refrigerant, was phased out for automotive use decades ago. R-134a operates at different pressures and requires compatible lubricants. Always confirm the exact specification on the under-hood service label, as some regional variations or aftermarket changes can occur.
Key facts you should know before service:
- Refrigerant type: R-134a (not R-12 or R-1234yf).
- Lubricant: PAG oil compatible with R-134a is used; do not mix with oils intended for other refrigerants.
- Charge accuracy: The correct amount should be determined by the service label/manual and is typically weighed rather than estimated.
- Service procedure: Evacuate the system, perform a leak check, then recharge with the specified R-134a quantity.
Conclusion: Use only R-134a refrigerant with the appropriate PAG oil and follow the vehicle’s label or manual for the exact charge.
Maintenance and charging considerations
When servicing the AC, it’s important to adhere to the correct refrigerant and lubricant specifications and to follow proper charging procedures to protect the compressor and seals.
Guidelines to keep in mind:
- Do not mix refrigerants. R-134a is the standard for this model year.
- Use PAG oil compatible with R-134a (commonly PAG-46 for many passenger vehicles) and avoid introducing the wrong oil type into the system.
- Charge should be measured or weighed according to the service label/manual; overcharging or undercharging can impair cooling and damage components.
- Always evacuate and leak-check the system before recharging to remove moisture and air.
In practice, a professional technician will verify the exact oil grade, refrigerant quantity, and system health before completing a recharge.
How to verify the specification on your vehicle
The most reliable source is the under-hood A/C service label. It lists the refrigerant type (R-134a), the total system capacity, and the oil specification. If the label is missing or damaged, consult the owner's manual or a dealership/repair manual keyed to your vehicle’s VIN for the exact spec.
Where to find the label
The A/C service label is typically located on the radiator support, near the accumulator (receiver-drier), or on the underside of the hood. It provides the official refrigerant type, total charge (in ounces or pounds), and the recommended lubricant amount.
Summary
In summary, a 2002 Dodge Caravan requires R-134a refrigerant with the appropriate PAG oil. Do not use R-12 or other refrigerants. Always verify the exact charge and oil specification from the vehicle’s service label or manual, and rely on a qualified technician for evacuation, leak testing, and precise charging to ensure optimal cooling performance and system longevity.
