- Jul 6, 2014
- 9,265
So lately I've become the resident mechanic for all things gm around the house. I don't mind and all so it's good. Well a couple months ago I had pointed out that the sierra seemed like it had a lifter tick or an exhaust leak. More so an exhaust leak in my opinion. Well fast forward to yesterday and my father asks what would make the truck run a little rough at idle and smell rich. I rattled off some things but at 200k I said maybe fuel pressure regulator or injectors. So I said I'd hook up the tech 2 and do a power balance. That night I'm playing and I just say "that exhaust leak sound louder?" He said maybe so I popped the hood to see if the bolt heads broke off like on the other side. Now what I notice is the plug boot (the ls uses this metal can over the plug... just look it up) is moving. So I am like okay I can see the exhaust leak is somewhere around there. Then for the hell of it I turn it a little. Then a little more. Then the boot gets hard to turn. Long story short this plug is like a full turn out from being snug. Not even tight.
So I guess it pays to check things out every once and a while. The truck had a tuneup done this spring at a reputable shop and I get it. Mistakes happen. But I guess it couldn't hurt to check and verify the work you have done. Don't know why I'm posting this but I found it humorous in a way.
So I guess it pays to check things out every once and a while. The truck had a tuneup done this spring at a reputable shop and I get it. Mistakes happen. But I guess it couldn't hurt to check and verify the work you have done. Don't know why I'm posting this but I found it humorous in a way.