I have a 2003 Ford F-150 4.6L V8 with 347k miles, i had recently purchased from my neighbor for $400. He had told me it needed the timing chain replaced. I test drove it and did a diagnostic and it had a misfire.
I replaced all 8 ignition coils and spark plugs, serpentine belt and a couple fuses.
It does have a small oil leak and smokes from the top cap when removed. How do i fix this? What could be the problem
For the oil smoke, it depends on how much you see. If it smokes a lot, either the valve stem seals or the piston rings are bad. For the oil leak, use the UV dye for finding the leak source.
Its not a whole lot but pretty steady could it be the oil itself burning?
Considering the mileage, the engine probably needs some work.
I'd do a wet/dry compression test to see how worn the rings and valves are - and make sure my PCV valve is working.
I did check, the rings are worn and it will cost me more then the truck is worth to replace.
I think it had way to much oil to begin with from the previous owner, when i did change the oil it was grimmy and looked like it wasnt changed for a while. I have a much less oil leak. Will a sealant help with regular changes
With that mileage, I would suspect the rings are probably worn out and you're getting a lot of blow by.
smoke, or steam?
