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Where is the ac low pressure switch located on a 97 buick century?

The AC low pressure switch on a 1997 Buick Century is usually located on the accumulator/receiver drier. This is a cylindrical component in the AC system's refrigerant line, often near the firewall or condenser. It's not always easily accessible; you might need to remove some under-hood components to see it clearly.

Because its exact location can vary slightly depending on the specific model and options, it's best to:

1. Consult a repair manual specific to your 1997 Buick Century: This will have diagrams showing the precise location. A Haynes or Chilton manual would be helpful.

2. Use a wiring diagram: Trace the low-pressure switch wire from the AC control unit to find the switch itself.

Caution: The AC system contains refrigerant under pressure, which can be dangerous if mishandled. If you're not experienced with automotive AC systems, it's recommended to have a qualified mechanic locate and inspect the switch.