1st gen Tacoma. Just swapped the plugs for the second time at 215k miles. So 8 plugs total to get that far. Found two coil packs with cracks running down the side. The plugs were shot. In there for about 110k miles and it had started to run rough.
I also found that when I adjusted the valves I didn’t tighten the valve cover enough and failed to tighten a couple of clamps. 10 years ago or so. No problems though. I am always worried about over tightening.
I also found that when I adjusted the valves I didn’t tighten the valve cover enough and failed to tighten a couple of clamps. 10 years ago or so. No problems though. I am always worried about over tightening.