Autozone ran a scan in my 2012 GMC Acadia Denali and code P0011 popped up. Their recommendation was to replace the Variable Valve Timing (VVT) solenoid.

Where is this located? Cannot find any video on Youtube.

If you also know how to replace, pls advise.

https://www.700r4transmissionhq.com/p0011-gmc-acadia/

didn't see anything in that thread that showed me specifically where the vvt solenoid is in a 2012 Acadia.

Is the oil in it fresh, proper grade, proper viscosity, and full?



1. Intake
2. Exhaust
3. Exhaust
4. Intake

They are pretty easy to replace, just one bolt each.

Did they tell you which one to replace?

P0011 is for Intake valve system performance bank 1.Conditions for Setting the DTC

• The ECM detects the difference between the desired camshaft position angle and the actual camshaft position angle is greater than 6–11 degrees.OR
  
• The ECM detects a slow response, a deviation greater than 1.5 degrees in time greater than 2.5 seconds, for the actual camshaft position angle to match the desired position angle during the test.
• Either condition exists for greater than 1 second or a cumulative of 10 seconds.

• The engine oil condition has a major impact on the camshaft actuator system.
• A low oil level condition may set this DTC. The engine may require an oil change. Inquire with the customer when the last oil change was performed. You may also monitor the scan tool Engine Oil Life parameter. Advise the customer an oil change may be required.
• Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing chain can cause this DTC to set.

Circuit/System VerificationNote: The engine oil level and the oil pressure are critical to the correct operation of the camshaft position (CMP) actuator system. Verify that the engine has the correct oil level and the correct oil pressure before continuing with this diagnostic.

1. Ignition ON, observe the scan tool DTC information. Verify that none of the following DTCs are set. DTC P0016, P0017, P0018, P0019, P0335, P0336, P0338, P0341, P0342, P0343, P0346, P0347, P0348, P0366, P0367, P0368, P0391, P0392, P0393, P0521, P0522, P0523, P0638, P2100, P2101, or P2119.
   • If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
2. Engine idling, command the suspected camshaft actuator from 0 degrees to 40 degrees and back to zero while observing the appropriate scan tool CMP Angle Variance parameters. The CMP Angle Variance should be less than 2 degrees in each of the commanded states.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System TestingNote: Use the J 35616-200 Test Lamp for this test. If the J 35616-200 Test Lamp is not available, use a test lamp that measures greater than 20 Ω.

Note: The voltage must be measured at the control side of the circuit.

Note: This step is testing the mechanical CMP actuator for the camshaft that set the DTC.

1. Ignition OFF, disconnect the harness connector at the appropriate camshaft position (CMP) actuator solenoid.
2. Ignition ON, load test for B+ between the ignition circuit terminal 1 and ground.
   • If less than the specified range, test the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.
3. Connect a test lamp between the control circuit terminal 2 and B+.
4. Command the appropriate CMP actuator solenoid ON with a scan tool.
5. Load test for less than 1 V between the control circuit terminal 2 and the ECM housing.
   • If greater than the specified range, test the control circuit for an open/high resistance. If the circuit/connections test normal, replace the ECM.
6. Remove the CMP actuator solenoid. Inspect the CMP actuator solenoid and mounting area for the following conditions:
   • For a torn, restricted, mis-positioned, or missing screens at the CMP actuator solenoid
   • For engine oil leaks between the oil sealing lands of the CMP actuator solenoid—Inspect the lands of the CMP actuator solenoid for nicks.
   • For oil seepage at the CMP actuator solenoid connector
   • If a condition is found, replace CMP actuator solenoid.
7. Ignition OFF, swap the suspected CMP actuator solenoid with a CMP actuator solenoid that is operating correctly.
8. Engine idling. Command the suspected camshaft actuator from 0 degrees to 40 degrees and back to zero while observing the appropriate scan tool CMP Angle Variance parameters. The CMP Angle Variance should be less than 2 degrees in each of the commanded states.
   • If the CMP Angle Variance is greater than 2 degrees, replace the camshaft position (CMP) actuator.
9. If all circuits/connections test normal, test or replace the CMP actuator solenoid.

Component Testing

1. Ignition OFF, disconnect the harness connector at the appropriate camshaft position (CMP) actuator solenoid.
2. Test for 7–12 Ω between the terminals of the CMP actuator solenoid.
   • If not within the specified range, replace the CMP actuator solenoid.
3. Measure the resistance between each terminal of the CMP actuator solenoid and the CMP actuator solenoid housing. The DMM should display OL.
   • If less than the specified value, replace the CMP actuator solenoid valve.
   • Also check cam shaft end play and don't rule out stretched timing chains. Note: hyper links won't work. Info copied from SI DOC # 2090406