Buick Regal: Diagnostic Information and Procedures

 Air Conditioning System Seal Replacement

Removal Procedure 1. Disassemble the A/C refrigerant components. Refer to the appropriate repair procedure. NOTE: Cap or tape the open A/C refrigerant components immediately to prevent system contamination. 2. Cap or tape the A/C refrigerant components. 3. Remove the sealing washer (1) from the

 DTC P1176 or P1177

Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors D