Through a series of fortunate events, I managed to get the full history of my LX all the way back to 2003, and found it had been nearly exclusively Lexus serviced. 60 pages. But in that 60 pages, somehow Lexus had never replaced the spark plugs? I hopped right on it, got them done no problem. They were in pretty sad shape, but the truck was still running fine.
But, one sparkie was particularly nasty, and the boot had browned around it. See photo. My gut tells me this is likely from exhaust that was seeping out from the edges of the plug as it may have loosened a bit over 230,000 miles. The browning on the top of the plug indicates that as well. Thoughts? Anything to be concerned about? Thanks.
But, one sparkie was particularly nasty, and the boot had browned around it. See photo. My gut tells me this is likely from exhaust that was seeping out from the edges of the plug as it may have loosened a bit over 230,000 miles. The browning on the top of the plug indicates that as well. Thoughts? Anything to be concerned about? Thanks.