How does the camshaft work on a Chevy Malibu?
How does the camshaft work on a Chevy Malibu?
The Chevy Malibu utilizes camshaft actuators to change the valve lift depending on the RPM of the motor. This allows for a more efficient cam profile at any speed. When the timing is too far advanced Camshaft Position Actuators change the lift of the camshaft up to 25 degrees.
How does the CMP actuator control the camshaft?
The CMP actuator assembly (15) varies the camshaft position in response to directional changes in oil pressure. The CMP actuator solenoid valve controls the oil pressure that is applied to advance or retard a camshaft. Modifying camshaft timing under changing engine demand provides better balance between the following performance concerns:
What happens when the cam position actuator fails?
Poor Idle Quality – If the camshaft actuator fails while giving the engine aggressive valve timing, it’ll idle roughly. Decreased Gas Mileage – Now the engine can no longer adjust its cam timing on the fly, it will no longer be able to produce optimal combustion which equals poor economy.
Why does my Chevy Malibu have a trouble code?
If your Malibu has the P0011 trouble code it will typically not pass the State emissions tests. The Chevy Malibu utilizes camshaft actuators to change the valve lift depending on the RPM of the motor. This allows for a more efficient cam profile at any speed.
How does a camshaft actuator work on a car?
The camshaft actuators are operated by varying the oil pressure. The varying mechanism is a pulse-width modulated solenoid controlled by the powertrain control module (PCM). The solenoid valve operates from 12-v power and the amount of time the valve is open to allow oil flow versus time closed is what determines camshaft actuator position.
How to fix a Malibu 2.4L engine problem?
Put engine oil on the new o-rings & don’t over-torque the hold-down bolts (torque spec is only 7 ft-lbs). The actuators are keyed differently (& have different part numbers) so you can’t interchange them. Click to expand… Just had this same problem on our 2009 Malibu.
What is the p0013 code on a Malibu?
Was driving on the highway for about 40 minutes, arrived at destination, 2008 Malibu sat off for 20 minutes. Started it up and engine light on. AutoZone scan was P0013. Car seems to run fine. Guy at AZ said it was cam position sensor, didn’t say anything about a solenoid and replacement part he showed was not the solenoid.
