Jim Stidham

Here it is in my hand, sort of a brown color. Where the plastic broke off it is white.

It has been almost 90 days since my last post. Here is what I have done so far with the truck. I changed out the number one fouled plug. Added a AFM module delete that plugs into the OBD port. Changed the oil used Mobile Techron, also added a bottle of Techron fuel injector cleaner and bottle of Auto-Rx Plus. I have driven a little over four thousand miles. Check engine light is still on and it still drives the same as it always has. The one thing I need to mention is when I changed the oil I did find two or three small pieces of a hard plastic type material in the oil. I assume that is from the timing chain tensioner since those are made of that type of material.

Just thought I would update the thread. It has been three weeks since the dealership told me the motor was shot and need to be replaced. Since then I have installed a Range Technology AFM delete module, changed the oil and added 1 bottle of Mobile Techron gas additive and 1 bottle of Auto RX since I had both, replaced the number one spark plug that they said was fouled. When I pulled the plug it did look fouled and very white, not full of oil like stated on the dealership paperwork. Then I plugged in my code reader and cleared the codes. Since then I have got almost 900 miles and no check engine light and the motor runs and sounds fine. Do not know anything else but I will drive it until blows. Right now the motor has 138K.

Big difference in what the dealer told me here in Boise Idaho. They quoted me $8500 for motor, plus labor. I guess I will be looking around to see what avenues I have and where I might get the work done. Thanks again for the information.

I appreciate the detailed response and would like to know where to purchase a GM LFA 6.0 motor if needed for $4195. Thanks for the information!

I have a 2009 Silverado 4x4 Hybrid Crew Cab that threw up a check engine light. Got home and plugged in code reader says P0016 and P0106. Took to the dealer first thing in morning dropped off at 7:30am, within an hour and half they called and said that I had a fouled plug in cylinder one and that I had spun a cam bearing and would need a new motor. First question would be how can you determine that there is a spun bearing without physically taking the truck apart? I have driven the truck home yesterday and back to work again today and the truck sounds and runs like it always has. No motor noises, no rough idle or running, nothing different but a check engine light on. Here are my questions: 1. Is it possible to diagnose a spun cam bearing without taking the motor apart? 2. Could the fouled plug be from the AFM system creating an excessive oil issue in cylinder one and fouling plug? 3. If it was a spun bearing can the motor be removed and fixed? 4. Is it possible to replace an LFA motor with a LQ4 or LQ9 or any other LS motor besides a LFA? Do really care to have the AFM any more. Thanks!