Having problems with your 1993 Ford F250 ?

Motor started missing when driving F250, oil level very low, topped up by 9 litres. Difficult to restart, black smoke, missing on some cylinders, then it cleared. 30 klms later performing OK, no oil leaks, no exhuast smoke but needing enother 8 litres of oil. Again hard to start, with black smoke and missing to start with. Where's the oil going? What's the problem? How to fix?

Posted / edited by AnonymousUser on : 18-06-2018

Answers :

The black smoke is indication oil in the cylinders, this can only get there from either the rings or the gaskets. first do a compression check to determine the integrity of the rings, a low reading would be a suspect cylinder. Then you will need to change the gaskets in the valve covers along with head gasket and intake gasket. These can all leak and you will lose oil, and since you have to take the parts off to check, you can replace tem with new gaskets. While you have the heads off you can check for any bad cylinders that look like they have been burning oil along with any visuall scarring of the cylinder walls which would indicate bad oil ring.
\015\012Bottom line is if it is not leaking out side the motor it has to be leaking inside.
\015\012I would aslo check the PVC valve, these can cause exess oil consumption but this seems a little much for just the PVC. if the valve is plugged it needs changed.
Repair Help & Product Troubleshooting for 1993 Ford F250

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