07/07/2024
Vehicle Model: Mazda 2 2017
Job Performed: Vehicle Diagnosis
Concern: AC not cooling
Diagnostic Reports and Repairs:
-Performed refrigerant pressure check
FF: Found both high and low side pressure below specification due to low freon amount in the system and with AC compressor noise during operation, with minor leak on low side hose fittings.
-HP: 150 PSI, LP: 20 PSI at 33 degress celsius ambient temp.
-Add approx. 400g of freon and performed refrigerant pressure adjustment: HP: 235 PSI,
LP: 32 PSI at 33 degress celsius ambient temp.
-Re-check operation found ok. For further observation and need to top-up more freon to adjust HP up to 290 PSI at 33 degress celsius ambient temp. specification.
Additional Recommendations/Parts Required:
O-ring large (low pressure hose side)
Vacuum and recharging of r134A refrigerant.