1992 Lexus LS400 Q&A
1992 Lexus LS400 Question: Why does my car have a lot of smoke coming out of the exhaust when I start it.
you either have worn rings or your valve seals are shot - goodguy
I still drive my 92 LS 400. I had the same problem. Ends up it was Dexron (Power Steering Fluid) entering the crank case through some power steering assist valve that runs off vacuum. I did not do the repair, but apparently the car can do without it. I plugged mine up over a year ago. My steering remains unaffected by this. However the white smoke at start up has stopped completely. I am told the SC has two such apparatus as opposed to just one for the LS. Follow this link, I hope it can help..............https://www.youtube.com/watch?v=MWhMb1vAS9U - Sgtsilvernblack