P0024 OBD2 Error on 2014 Buick Lacrosse 3.6L Engine - Causes and Fixes
Hello everyone, I'm new to this forum and recently acquired a 2014 Buick Lacrosse with 32,001 miles from my brother-in-law. After driving it for the first time, about a week ago, the MIL (Malfunction Indicator Lamp) came on during a short trip—approximately one mile from home. I immediately turned around and returned home, switching to my 2009 Camry which has proven reliable in the past. The diagnostic code displayed is P0024, indicating that the exhaust camshaft on the second bank (rear bank) is advancing beyond the specified range. The vehicle runs normally under normal conditions, but I'm concerned about potential long-term damage or performance issues. I plan to reset the code and take the car for a longer drive to see if it returns. Anyone have experience with this specific P0024 error on a 2014 Buick Lacrosse? What are the most common causes and recommended fixes? Thanks in advance for any insights or advice!
The P0024 code is commonly caused by engine oil issues—such as low oil levels, incorrect viscosity, or infrequent oil changes. Over time, sludge and varnish can build up in the solenoid valves, leading to improper camshaft phasing. Recommended first steps: - Check current oil level, condition, and change history. - Add a bottle of 'RISOLONE' engine oil detergent to help dissolve varnish and improve valve train performance. - After driving for some distance, monitor if the code returns. If it persists, the solenoid may need replacement. For more details on P0024 in Buick Lacrosse 3.6L engines: https://www.obd-codes.com/p0024