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Dan, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1687
Experience:  Auto Technician
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I have 2011 GMC 150 104,000 miles the cylinders and rings

Customer Question

I have 2011 GMC 150 104,000 miles the cylinders and rings were replaced at 95000mi. by the Dealer and covered under the100000 mi warranty it was and fouling plugs and burning Burning oil. It runs well right now but if there is a simple fix for deactivating the active fuel management system I am am all for it. Do you have solution.
JA: Has the vehicle turned into a gas hog? And how does it start -- same as usual?
Customer: The vehicle starts fine and I average 16.5 mpg.
JA: What is the model of your '11 Chevy?
Customer: Sierra 1500 4 x 4 with the Z71 package.
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes I have done nothing just looking for options.
JA: Anything else you think the mechanic should know?
Customer: That's all
Submitted: 1 year ago.
Category: Chevy
Expert:  Dan replied 1 year ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.

Expert:  Dan replied 1 year ago.

You cannot deactivate it because it is in the trucks programming. You would need to swap over a lot of parts to make this happen, and it would not even be worth the trouble.

The engine controls how the valves are opened and closed and there is no simple way to get rid of it. Sorry