Recently purchased used 2005 GMC Canyon, two days after purchase check engine light came on and stayed, the truck did not run rough or make noises. Took directly back to dealership, it was determined the oxygen sensor was bad. Replaced. Five days later the same thing happened...diagnostics determined catalytic converter, oxygen sensor and exhaust intake were all related. All repairs now complete and appear to be no other issues after driving the vehicle 3 days.

- Saginaw, TX, USA

: the contact stated while driving 50 mph on a highway on-ramp, the vehicle stalled completely. The vehicle was able to be restarted after 20 minutes. A service dealer was contacted, who stated that the vehicle would have had to have been brought in before it was restarted in order to diagnose the problem. Subsequently, the vehicle was not taken in for service. Updated 12/5/2006 -

- Dayton, OH, USA

Earlier I complained that I had to replace the cam shaft solenoid for the second time, I was mistaken in that complaint, now I am told that it could be an actuator, cam shaft problem or some other related problem. Getting the same error codes as last 2 times in the shop P014 P017 and P300. Engine is till sputtering and dying, pushing too much fuel.

- Lincoln, AL, USA

#3 cylinder lost compression and head warped. This happened March 13. GM issued a tsb on March 10 for this problem.

- Vacaville, CA, USA