Hello, I just had the same issue on my GMC Canyon. The dealer was able to fix the issue. After I has to raise a case with GM corporate first!
Even though the cam actuator solenoid seems to be causing this most of the time, it is not the only problem causing this issue. The actuator solenoid causes this only if the micro screens have broken off.
Mine was actually being caused by what the GM Tech called the Cam position sensor or something like that (under the upper manifold sensing the cam shaft position). He showed me this on the computer and told me how much it was going to cost!
However we both noticed on his computer a link to warranty information.
To make a long story short - GM is aware of the problem and actually extended the warranty on the issue for 5 years/50,000 miles but did not let the customers know about this.
If the link hadn't been spotted I was going to be charged over $1000!
The local GM dealer fixed this for me for free and I have not had the error now for months.
So talk to you local GM dealer and let them know that you are aware of the problem and that it is covered even though GM's original warranty on the 2006 model Canyon/Colorado. (Mine is a 4 CYL)
If yours have over 50,000 miles and they don't want to cover it, I would suggest that you call corporate and file a case since it is a MFG defect.
The customer support for GM was very professional and helpful in my case and have restored my confidence in their product.
I just wish they would be more proactive and open about notifying customers of potential issues ahead of time.
Friday, April 30th, 2010 AT 4:45 PM