Same side as the high side,look way back above the right side of the engine. It's real hard to reach.
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
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There is a great web site that will give you pin point location of your low side port check the link below.
should be located on the passenger side fender right behind the battery
Where is the diagnostic scanner port on a 1995 F-250 4x4
On a 1993 Ford F-150 : Follow the top radiator hose from the radiator . Where it connects to the engine is the engine cooling thermostat
The passenger side of the engine is bank 1 on your 2001 Ford F-150
It's under the hood on the right side fender next to the a/c blower housing.
On a 4.6 1997 F-150, the low side AC port is near the firewall. It is on the hose that runs from the compressor to the accumulator.
Your 1993 Ford F-150 - 5.0 L V8 engine spark plug gap is ( .052 - .056 inch )
The low side ac port for the 1990 e 150 should be on an aluminum pipe. The pipe is on the passenger side of the engine compartment just beside of the battery.