SilviaDET

WOW, I pulled the front valve cover to check the valves....... holy crap now I know what sludge is. I tryed to clean as much out as I could.... Had to use a frigging spoon!!! Another question how are the cylinders numbered? I took some pics, I'll post em up when I get a chance. I am shocked. I may try that.... probably cannot hurt after what I found in that cylinder head.... Always NGK's :D only difference is that I had bought the platnum's instead of the iridum(sp) plugs.... it shouldn't make a difference in this case. Wish I had bouight the coppers instead. easier to read and can swap em every week with out feeling it in your wallet. As for the coil packs, I am familiar with them, (my 240sx w/ sr20det uses the same system). What I tried was swaping the coil packs with other cylinders and then getting the codes read again, so different plugs and different coil packs, same codes... next I'll test the wires for a good signal geting to the coils. Firestone special basic oil probably, knowing him. What exactly did the Lexus dealer say? What was the maximum amount of time and miles that ever elapsed between an oil change? I have not looked at the recipts myself, knowing him and his habits he probably erred on the side of lazyness, so probalby twice a year, maybe 3 times/yr but still the car only has 49,767 miles on it, so from 2000 to now.... and from what he told me lexus told him he was SOL, thats corp and the local stealership.

Hello all, This is my first post here on this board, and I need some help. The car is actually my brother in laws, trying to help him out. First, the car -- It's a 2000 ES300, w/ 50k miles, oil changed bout every 5k miles w/ recipts, bought new here in dallas, tx. The car definatly has a sludge problem, pulled the oil cap and it looks like there is sand in the oil. Its bad. Unfortunatly Lexus will not do anything to fix it, contacted corp and everything. Oh well, onward. Engine has been flushed repeatly by a local shop after problem was discovered. Also I added some valve and ring sealer to oil because it was burning oil, a lot of oil. Also the CEL and TRAC OFF lights have come on, also the car's feels like its surging. I though it was fouled plugs from burning oil, so I swaped the plugs, inspecting the old plugs I realised that the oil was being burned in the #2 (I think, pass side of car, front) cylinder, plug doused in oil, and chunks of valve seal (i think at least) in the cylinder. disconnected the battery for 30min to reset the ecu and starter her up, in bout 5 min the cel and trac lights came back on. Fast forward a month, problem still exists, car has been driven very infrequently, and for short distances, it no longer smokes, however the cel and trac lights are still on (cel intermittant, but usually on) and still surges, took it to autozone and had them read the codes, got a P0300, P0301, and P0302. Being that changing the plugs before did not help it, Im shying away from replacing the plugs again just yet. Checked vacuum lines. And will check coil pacs next. Any other advice?