Valve stem seals can cause this problem, but normally only when first started. Oil in the rocker cover seaps through the oil seals into the cylinders and is burnt up on start up.
Try a "STOP A LEAK" additive and it may reduce the oil consumption and smoke.
I found some on e-bay and it worked on my tired old escort. It even stopped the rattling tappets.
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Finally after almost replacing the engine I found the problem and fixed it. I was talking to a mechanic who told me with the mileage on the car (about 150K) valve stem seals shouldn't be leaking. He told me to disconnect the hose between the top of the valve cover and the air intake and see if the smoking went away. It did. The problem ended up being the valve covers were packed with sludge which caused oil to be sucked into the air intake through that tube. That tube is the crankcase vent tube. I took the valve covers off, soaked in degreaser and then pressure washed them. Fixed the problem.
Toyota was actually sued for excessive engine sludge in this particular motor in the late 90's. This engine sludge worked it's way into the valve cover vents. Oil would get trapped in the sludge and then siphoned oil into the intake which caused the motor to appear to burn oil. Once that was repaired oil consumption dropped to almost none.
I took the car for oil change. They did other repairs. Now when I start the car in the morning it starts but wont
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