P3497 Buick Multiple Displacement System Rationality Bank 2
Possible causes
– Low oil pressure
– Restricted oil passage
– Engine mechanical condition
– Multiple Displacement System (MDS) Solenoid fault
– Restricted oil passage
– Engine mechanical condition
– Multiple Displacement System (MDS) Solenoid fault
Tech description
Although in some cases changing the engine oil may fix the problem, usually the Multi Displacement System Solenoid may need to replaced.
What about the obd code?
The Engine Control Module (ECM) has detected a lean condition on bank 2 while in the 4 cylinder mode
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P3497 Buick Description
The Multi-Displacement System (MDS) deactivates four of the V8’s cylinders when the throttle is closed or at steady speeds.
Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera