Valves

• The Cadillac Northstar V8 features an impressive array of 32 valves, with two intake and two exhaust valves serving each combustion chamber. The valves are dual overhead cam operated, with quiet-running, durable chains running the cams. The valve arrangement design helps increase the engine's horsepower output.
  
  

OBD II

• The Northstar is equipped with a government mandated OBD II regulatory system that serves as a watchdog control to detect emission system malfunctions. The all-inclusive self-diagnostic system checks all vehicle components affecting emission output. It alerts you to failures in the emissions system, while also detecting deterioration in its performance. This advanced monitoring system enhances fuel economy and serviceability.
  
  

"Limp Home"

• The Northstar special "limp home" mode permits the engine to run 50 miles at 50 mph without engine coolant. Fuel is delivered to four running cylinders, with the other four not firing, but pumping air to cool the engine.