oil..but what is it for both?,just in case im wrong...lol
Oil fouling is likely from a bad valve stem seal or worn oil control rings. I would use a spark plug from a hotter heat range to burn off the fouling. Carbon fouling is from running too rich.
do you have to take the motor apart to change the rings and valve stem seal?
just bought the truck.its got a small miss,fouling the #5 plug..replaced it,fouled it again.
1993 Ford F-250 2 Dr XL 4WD Extended Cab LB
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Maintenance & Repair
will the 5.4 out of my 99 f-250 fit in my 06 f-250
1999 Ford F-250 2 Dr Work 4WD Standard Cab LB
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Maintenance & Repair
the old one has a wire going to a condenser and only has two wires going tothe plug iitself and the new one has three wires
1989 Ford F-250
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Maintenance & Repair
The truck will start up and run fine for 40 minutes then just die like you flipped a switch. No stalling just dies. Let it sit for an hour and it will start back up. I have replaced the ignition contr...
Ford F-250
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Maintenance & Repair
If its fuel pump, instructions please on identifing problem, repairing or replacing, estimated cost replacement, helpful tips removing and installing fuel pump.... 1993 Ford F 250.
1993 Ford F-250 2 Dr XLT 4WD Standard Cab LB
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Maintenance & Repair
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