5.4 Fuel System Return Type?
5.4 Fuel System Return Type?
2000 E250 with 5.4 gas engine, working through a possible fuel delivery issue. In the WSM there are different diagnostic steps depending if my system is mechanical returnless or electronic returnless---how do I determine which system I have?
Sorry if this is redundant or already talked to death.
TIA
Sorry if this is redundant or already talked to death.

TIA
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