Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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The most common caused for the code P011 to set is in most cases caused by a failing Intake Camshaft Actuator Solenoid providing you have clean oil and good oil pressure. I would start first with having a look at the is and see if its sticking. See the steps in the link below for testing and as well as the link for replacement. Its very common for them to stick and fail.https://dl.dropboxusercontent.com/u/104923897/Intake%20Camshaft%20Actuator%20Solenoid%20Sept%208.pdfhttps://dl.dropboxusercontent.com/u/104923897/Act%20testing%20Sep%207.pdf
That is not a sensor its an actuator which in 99% of all cases is the cause for the fault code P0011 your getting.
That would be the camshaft position sensor. See its location in the link below , that being said if your getting a code P0011 I would have a look at the Camshaft Actuator Solenoid as well.https://dl.dropboxusercontent.com/u/104923897/Cam%20sensor%20Sept%208.pdf
Its possible especialy if you do a flush providing you have good oil pressure. The actuator is known for sticking, sometime a flush and oil change will solve it and sometimes you have to replace it.
You can access it once you remove the Intake cover just as shown in the steps I sent you.
Okay and before you do this run a flush through it as well.