pspaude

Thanks for the reply, I will give this a try and see if that is the culprit.

I have a 1999 GS400 with 55k miles on it. Not driven hard. On occasion I will get a puff of smoke on startup. It does not smell exactly like regular crankcase oil. It only does once in awhile for about 1 or 2 seconds and then it is done. I have been told it is the valve seals from one person, but that seems early. I have also heard that there was a problem with power steering fluid being sucked back into the engine via a leaky vacuum valve from the power steering unit to the engine. Does anyone have any ideas on this, and if so, what is the remedy? Thanks,