* Regulations Changed: Refrigerant types have been heavily regulated over the years due to environmental concerns. What was used in a 1994 vehicle may be illegal or harmful to use today.
* Model Variation: Even within the same year, different Chevy truck models could have used different refrigerants. The specific type depends on the model, engine, and AC system configuration.
How to Find Out:
1. Look for a Label: Check the sticker on the AC unit itself. It may have a refrigerant type listed.
2. Consult Your Owner's Manual: The manual for your specific truck year and model will likely specify the refrigerant used.
3. Contact a Mechanic: A qualified mechanic can identify the refrigerant by inspecting your AC system.
Important Note: Never attempt to work on your AC system yourself unless you are a certified technician. Refrigerants can be dangerous if not handled properly.
