2004 GMC Envoy 6 cyl. check engine light on trouble code Poo16 cam crank sensors have been replaced 2 mechanics and 1 GMC dealer have not been able to solve problem. Last guy said something about a screen behind the valve cover being clogged? Light has been on for a year and the car runs fine but now I want to sell it so I need to solve this problem, any suggestions?
Country: United StatesMake: GMCModel: Envoy XL SLEYear: 2004Engine: 6
new cam and crank position sensors castroil engine flush
Hello and thank you for trusting me with your question. My name is XXXXX XXXXX X will do my best to help you with your GMC problem.The screen the one mechanic is referring to is on the camshaft actuator solenoid. This solenoid is on the passenger side of the cylinder head. It would be worthwhile to replace this solenoid in an attempt to repair the problem. If replacing the solenoid does not fix the problem then the cam sprocket will need to be replaced. The cam sprocket contains the actuator that varies the cam timing. 1. Remove the drive belt. 2. Remove the 3 power steering pump bolts and move the pump out of the way. 3. Disconnect the camshaft position actuator solenoid electrical connector. 4. Remove bolt securing solenoid, remove solenoid.If you would like any additional information or have more questions please don’t hesitate to ask! Please remember to only rate my answer when you are 100% satisfied. IF you feel the need to rate "Poor Service" or "Bad Service", please stop and reply to me via the REPLY TO EXPERT button with the issue you have. I will be happy to continue further and do everything I can to provide you with the service you seek.I am not paid unless I get a rating of 3 to 5 Stars/Smiley Faces. If I have helped you with your question, please give me an appropriate rating so that I get credit for helping you.Thank you,David
ASE Master Certification. GM World Class Certification
this part has been replaced twice first one leaked, mechanic put another