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I had the same problem. It is on the right side of the firewall under the heater box. CT
The 2001 Ford F-150 OBD 2 port is under driver side dash above accelerator pedal
Additional engine cooling?
There is a great web site that will give you pin point location of your low side port check the link below.
on the side of the throttle body.
Same side as the high side,look way back above the right side of the engine. It's real hard to reach.
15426378 NUMBER 1 IS R/ SIDE 15426378 NUMBER 1 IS R/ SIDE
underneath panel on passenger side . remove the lower side bottom panel and you cant miss it
Where is the diagnostic scanner port on a 1995 F-250 4x4
The passenger side of the engine is bank 1 on your 2001 Ford F-150
== == Engine compartment, front wall, near the rad. Black metal object curved shape. Bolted to the front cross wall that has the rad attached to it.
how do i remove the computer on a 1989 ford f-150