4.6 oil pump
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4.6 oil pump
I have had a noise in the front of the engine of my 2002 f150 4.6 for about 2 weeks. On my way home my oil light came on made a knocking noise and shut off. The engine would not start back starter would engage but not turn motor it was seized. i called a tow truck and had it towed home. The next day just out of curiosity I tried to start it. It fired up ran and built oil pressure. If the oil pump froze will that make it . Can the oil pump make the engine act seized up?
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Is the oil level up on the dip stick where it belongs?
If you ran on no oil on the stick you likely got serious engine damage by running too low on oil.
That can freeze (burn) fast rod and crank bearings, starve the cylinders of lube and stop the motor.
When the motor cools it sometimes is broken free by the starter after the parts shrink .
You must understand that while running at speed the oil in the pan is less because a lot is circulating 'upstairs' in the top of the motor so the pump could run out if there is nothing left to pick up.
As of now you don't know how serious it is without a lot of work or taking a chance and continue using the truck until the motor gives up again, then it replacement time.
The oil pump itself is the last part I would blame for what has happened unless the pickup tube broke off or totally plugged up. You still have to remove the pan to find out..
Good luck.
If you ran on no oil on the stick you likely got serious engine damage by running too low on oil.
That can freeze (burn) fast rod and crank bearings, starve the cylinders of lube and stop the motor.
When the motor cools it sometimes is broken free by the starter after the parts shrink .
You must understand that while running at speed the oil in the pan is less because a lot is circulating 'upstairs' in the top of the motor so the pump could run out if there is nothing left to pick up.
As of now you don't know how serious it is without a lot of work or taking a chance and continue using the truck until the motor gives up again, then it replacement time.
The oil pump itself is the last part I would blame for what has happened unless the pickup tube broke off or totally plugged up. You still have to remove the pan to find out..
Good luck.
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