Fuel System Fault?

[14SLTZ71]

Thanks to all of you who responded.

 

Got my truck back today. They spoke with the GM engineers before taking my engine apart and were told to replace the camshaft actuator solenoid.

 

What had happened was the solenoid got stuck in the full retard position. This makes sense given the engine was getting fuel and spark but no combustion. They replaced the solenoid, and vois la, the engine started and ran as it should.

 

Since the part is mounted externally on the block, I took back ownership of the truck. I am elated to have it in good condition once again.

 

Thanks again for responding and giving your input. Happy driving.

 

that's great news, glad to hear everything worked out.

[pm26]

 

What had happened was the solenoid got stuck in the full retard position.

I can think of a few more things that are stuck in the full retard position at GM.