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Ask Gm Tech (Cam) Your Own Question
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 29534
Experience:  GM Grand Master Technician 2007. 14 year experience.
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I have a 2008 gmc 4.8 and its marking p0056 p0060 p0160

Customer Question

I have a 2008 gmc 4.8 and its marking p0056 p0060 p0160 p0161 p069e p0191
Submitted: 1 year ago.
Category: GMC
Expert:  Gm Tech (Cam) replied 1 year ago.

Hi there, I am Cam. Can I get your first name please?

Most of your codes can be address by checking the oxygen sensor in the rear passengers side position. There is a bulletin that outlines a repair for chaffed wiring. IT is attached. in the first link. The second is a possible wiring issue at the ECM and is outlined in the second bulletin (link)and the last code is possibly just set because of the others. Lets address those and proceed from there.

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