I am replacing my spark plugs soon and was wondering if I should replace anything else while I am in there? I have a 2010 Xterra 4x4 SE with 138k miles and I am not sure if the plugs were replaced. Looking for tips from anyone who has done this project before.
I have been having intermittent engine misfires (at idle and running) on my 2005 Xterra Offroad (175k or 179k miles) since October. Here's some background.
October: First engine misfire, blinking SES light. I took it to the mechanic I thought I was beginning to trust and they said it was the...