Under my 1997 F150 4x4 frame near spare tire , there is a box like device with wires going to it. Does anyone know what that is ?

 

If it's the Black box directly above the spare, it's the winch system the lowers and raises the spare.

 

The EVAP canister. Filters the fumes from the gas tank.



Item Part Number Description
1 9F980 Evaporative Emissions Test Port
2 9G271 Evaporative Emission Return Tube
3 9C915 Evaporative Emission Canister Purge Valve
4 9B593 Fuel Vapor Vent Valve
5 9C052 Fuel Tank Pressure Sensor
6 9B593 Fuel Vapor Vent Valve
7 9D665 Evaporative Emission Canister Bracket
8 9D653 Evaporative Emission Canister
9 9F945 Canister Vent Solenoid
10 9002 Fuel Tank
11 9E926 Throttle Body

 

Yep, probably the fuel evap. Thanks

 

Thank you for the diagram. I was searching threads today because my 1997 just set a P1450 code yesterday.
Do you (or anyone else) have any thoughts as the most likely culprit? The evap system has never been serviced other than a PCV valve or two. The truck has had nothing done to it lately other than turning over 100K miles on Thanksgiving.
Thanks!

 

When I got the code with my Micro Tuner, I cleared it and did the only quick and easy fix I could think of. I removed the gas cap, inspected it, shook it a couple times and put it on and off a couple of times.

Drove it 60 miles today without a code. Fixed for now