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toylexmods

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About toylexmods

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  • Lexus Model
    00 LS400, 99 LX470, 92 SC400
  1. BTW, The running rough is a key factor. You could be getting some blowby due to excessive piston clearance and ring clearance. Not good Also, I have said all along just do the proper diagnosis not the song and dance with ears and eyes closed. Hell, I would expect Chevy to do that with a pos 30000 dollar Suburban...not Lexus and a 65000 LX470. Yep, I dont know how many more winters this thing will last with this slapping. It is loud if left outside....sounds like a rod knocking. Just one cylinder too!
  2. dmichaels, Glad to see this thread is still getting noticed. I too got the same song and dance of no reported failures of this engine. My question is this, we all know this is a wear concern and wear will increase over time until it really starts going. Toyota/Lexus are banking that us owners will trade the truck off or sell it before things really get bad and the engine absolutely needs repair. The problem with this position? Those of us who know whats happening will never own a Lexus again. Period. We have had 5 and will not purchase another Lexus. End of story ;( And we have ow
  3. Tex, I agree completely. Some noise is ok on a real cold start. The problem is....mine is rapidly getting worse and its just one cylinder not a series of knocks. Oh, you can hear it in the cabin, outside the truck, across the street and down the block. I think of a real cold start as 10 degrees or below.....not 50 degrees. What do you guys think? This thinks knocks at 50 degrees. ===================================================
  4. Thanks for the feedback everyone. Keep the replies coming! From this and other lists it does seem that the knock is not a normal condition with these vehicles. I do need additional responses to make the numbers more reliable. Check out my thread on the Landcruisers forum. Lots of good input and feeback there.... http://forum.ih8mud.com/showthread.php?t=30084 Thanks again, Dave
  5. Js, What do you base your statement on? 5/30 and 10/30 are the weights I use. At 40 and 50 degree temps...5 or 10 weight will make no difference on a cold start. Right?
  6. Jocigar, Thank you and exactly the information I needed. If ever we needed the actions of a community such as this...it is now. This should not be the normal condition in a 65k vehicle. I have read all the horror stories about GM and the ongoing problems. Ford on the otherhand has fixed this problem and replaced thousands of engines. I dont think this is a rampant problem with the LX/Landcruiser and hope to come to the table with 100 owners and no problems. That will make Lexus listen. And a side note. Sure, when started there can be some cold engine noise...for a few seconds...say
  7. No solutions yet on the Tundra/Sequoia boards. I have heard of Toyota looking to replace some engines. Nothing concrete yet. Bottom line, this is not a nuisance or subjective issue. One piston is making lots of noise....noise is wear, the noise is getting louder and louder each year, the wear is getting more and more. Lexus does not want to fix it because it will cost lots of money. I dont care about the Lexus bottom line...nor the Toyota bottom line. If it is out of spec....its out of spec. If its normal there should be other owners having the same noise. So, here is the poll. I
  8. Nope, I was hoping that mine was the manifold. No dice. What are your specifics? age/mileage and location. Does it get cold where your at? and does the LX sit outside from time to time? The best way to duplicate the knock noise is as follows... 1. Start engine cold with outside temps below 40 degrees. 2. Put truck into gear 3. Power brake the truck just so the rpms get to between 1000 and 1100. If the pistons are rattling...you will hear it as a distinct knock, knock, knock...that will go away after 30 to 120 secs. Thats it....any other questions? ================================
  9. Hey everyone, I seem to be having a problem with Lexus and the tech assist department. Can any owners post some documentation please. 99 LX470 with 75,000 miles. Started last winter in Colorado. Engine knock when started in cold temps. Sounds like a diesel truck....ie knock, knock, knock....lasted for 30 seconds or so. We didnt leave the truck outside that often...but the noise was worse the colder the temps. I really noticed it when I had to move the truck in the driveway after a cold start....it sounded like a diesel. on accel....knock, knock, knock. Ok, winter 2002 there were no abnorm
  10. Hey everyone, I seem to be having a problem with Lexus and the tech assist department. Can any owners post some documentation please. 99 LX470 with 75,000 miles. Started last winter in Colorado. Engine knock when started in cold temps. Sounds like a diesel truck....ie knock, knock, knock....lasted for 30 seconds or so. We didnt leave the truck outside that often...but the noise was worse the colder the temps. I really noticed it when I had to move the truck in the driveway after a cold start....it sounded like a diesel. on accel....knock, knock, knock. Ok, winter 2002 there were no abnorm
  11. Sorry, I couldnt delete this post and started another. See the other post for a better description. __________________ Cheers, Dave Hall 99 LX470....special knocking diesel model. We were thinking about a new GX470 but forget it now. 92 SC400 00 LS400
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