How does cylinder deactivation work on a GMC Sierra?
Meanwhile, the gas/air mixture from the last intake stroke is repeatedly compressed and acts as a gas spring, decreasing engine drag (because of the force exerted on the piston by the gas/air mixture).
What happens when the solenoid valve is closed on a Chevy Silverado?
With the solenoid valves closed, engine oil pressure in the control ports is exhausted through the body of the solenoids into the engine block lifter valley. The housing of the VLOM incorporates several bleeds in the oil passages to purge any air trapped in the VLOM or engine block.
Why does my Chevy Silverado go into 4 cylinder mode?
It goes into 4 cylinder mode in situations where there is low torque requirements. Your ECM controls the fuel flow and spark to these cylinders. By cutting it out, they simply do not function, and it’s saves gas. The beauty is, you have not even noticed it, right? Another name for this is “Active Fuel Management”, or, AFM.
Where are the cylinders on a Chevy Silverado?
To provide maximum fuel economy under light load driving conditions, the engine control module (ECM) will command the cylinder deactivation system ON to deactivate engine cylinders 1 and 7 on the left bank, and cylinders 4 and 6 on the right bank, switching to a V4 mode.
Meanwhile, the gas/air mixture from the last intake stroke is repeatedly compressed and acts as a gas spring, decreasing engine drag (because of the force exerted on the piston by the gas/air mixture).
With the solenoid valves closed, engine oil pressure in the control ports is exhausted through the body of the solenoids into the engine block lifter valley. The housing of the VLOM incorporates several bleeds in the oil passages to purge any air trapped in the VLOM or engine block.
It goes into 4 cylinder mode in situations where there is low torque requirements. Your ECM controls the fuel flow and spark to these cylinders. By cutting it out, they simply do not function, and it’s saves gas. The beauty is, you have not even noticed it, right? Another name for this is “Active Fuel Management”, or, AFM.
How to disable 4 cylinder mode in GM Active Fuel Management?
Keep your vehicle in V8 mode! Disable 4 cylinder mode on all GM Active Fuel Management Vehicles.Installs in seconds! Plugs into diagnostic port with no tools needed.Does not reprogram factory ECU. Leaves no trace.Full power all the time.