Oil in fuel system due to injector seal leakson Ford Excursion

When changing the fuel filter, if the fuel in the filter bowl looks gray or black, it may be a sign that the fuel injector O-rings are allowing high pressure oil to migrate into the fuel return system.  Symptoms of this are rough idle or hard starting.

RepairPal Verified
Average mileage : (–)
EngineAffected: = affected_variants_list(car_problem_description)
3 Years Affected: 2001, 2002, 2003
3 people reported this problem
0 people shared problem details
Related Items:
Check gauge appears and oil pressure gauge indicates zero intermittently when driving at speed...
what are some possible causes of excessive oil consumption?
After oil change with the dealer, I need to put 1-2 quarts extra every month before the next oi...
The high pressure diesel fuel injection pump may fail, resulting in a "no start" condition.
When accelerating the car seems to skip/stutter. It used to only do it on the freeway once in a...