Took the engine covers off and now have an idea of if the plugs and wires have been changed at 100k miles. Has AC Delco wires on it and am gonna pull a plug and inspect. Gonna be doing a full fluid change. If has OE plugs, gonna change them too. Did they come out of the factory with ACD wires or Genuine GM? ..
On my wrenching thread I will explain about the work I did today for the guy that sold me the Denali. Yes, I got some money back.
On my wrenching thread I will explain about the work I did today for the guy that sold me the Denali. Yes, I got some money back.