Cylinder Wash
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4wd Low
Joined: Mar 2016
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Cylinder Wash
In my 2003 F250, the fuel injector on #4 cylinder got stuck open and a local mechanic says the excess fuel "washed" the cylinder and compression is <100psi. Lots of white smoke. He said to replace the engine. Perhaps so but is there anything to try before dropping thousands into another engine? I've seen online where some have had success by removing the spark plug and pouring in a quarter-ounce or so of oil or transmission fluid - then turning the engine over a couple of times to allow the oil to re-lube the cylinder wall. Maybe wouldn't hurt to try. Have any of you had success with this or any other similar procedure? Thanks in advance.
Update: Tried re-lubing. No luck. Truck has been sitting now for over a year. Anyone have suggestions?
Update: Tried re-lubing. No luck. Truck has been sitting now for over a year. Anyone have suggestions?
Last edited by jwats316; Mar 30, 2026 at 05:13 PM. Reason: No responses on initial post. Reposting.
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mikekerr
Modular V8 (4.6L, 5.4L)
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Jan 10, 2018 04:21 AM
