Engine Mechanical problem
1991 Toyota Tercel 4 cyl Two Wheel Drive Manual 154322 miles
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the car run good has not lost power but it has blue smoke when u crank it and if u reve it up it smokes done compression test and it good

you could still have cacked valve oil seals causing the oil to drip a little inside the combustion chamber. Yes I would say its the valve seals if the smoke is blue ,if its black, then it has something to do with fuel.