2001 Toyota Avalon Q&A
2001 Toyota Avalon Question: checkengineLite cameOn.blown smokeout exhaust.CodePO446 What Exactly is Problem?
just bought used 2001Avalon.havent had2wks&check engine lite came on.Reads Code PO446!its blowin alot grey/blue smoke,but only when car has set for 3-4hours.changed oil Sunday-still same problems.In fact,had to add a qt oil this morning. Need detailed advice Please - KeepitReal
HOW MANY MILES ON CAR. OR (SHOWING ON ODOMETER)? IT IS A QT. LOW OFF OIL NOW AND IT WAS FULL SUNDAY? DOES IT SMOKE ALL THE TIME OR JUST AT START UP THEN CLEAR UP? - pushrod
I have a 1998 Avalon w 260K mi. It was burning oil, blowing blue smoke and smelling awful. I aspirated two 16 oz bottles of "Sea Foam" petroleum distillate through the air intake. This cleans the carbon deposits out of the many valves. This also creates a helluva smoke storm as its getting rid of the carbon deposits, so get ready to drive it down the highway 10 miles to get it all cleaned out. Oil consumption is way down, exhaust is clear and it does not smell. Idle also purrs like a cat now. Check your PCV valve, too. It is inexpensive, but a little engine oil sludge can clog it and cause many problems due to the increase in crankcase pressure that forces oil out valve stems and cover gaskets. Good luck! - PeterATL