Buick Regal: Diagnostic Information and Procedures

 DTC B0550

Diagnostic Instructions Perform the Diagnostic System Check prior to using this diagnostic procedure:Diagnostic System Check - Vehicle Review the description of Strategy Based Diagnosis:Strategy Based Diagnosis An overview of each diagnostic category can be found here:Diagnostic Procedure

 Oil Pan Cleaning and Inspection

Preliminary Procedure 1. Ensure proper use of room temperature vulcanizing (RTV) sealant. 2. Thoroughly clean the oil pans and mating surfaces. Inspect each component, O-rings, and fasteners, and replace as necessary. 3. Remove all sludge and oil deposits. 4. Inspect the oil pan for cracking nea