kad150

I just had to use my spare for the 1st time. I noticed a desintegrated electonic box mounted on the frame above the spare. I assume it has to do with emissions. Anyone know what it is and where to get a scematic and/or part#?

Mako1801

My guess would be that it is part of the Evaporative Emission Control System (EVAP). Specifically, the EVAP Canister Assembly is what is located above the spare. I'm not real knowledgeable about the system, but it basically absorbs fuel vapors and dumps them into the intake manifold where they mix with the incoming air/fuel mixture. As for a part #, I have no idea. Hope this helps.

Lenn

Do you have a pic of this ruckus?

seniorFORDtech

there are evap parts back there, there is also a fuel pump driver module
measures about 4"x4" in size one connector.. it is commom for these to rot. people dont see it until the truck don't start..

kad150

Yep it's rotten, I can see the circuit board. Thanks.

DORMAN68

YEP! fuel pump driver module, my inlaw's truck (2004 F-150) needed one last winter, the darn thing rotted out.

fastford04150

hmm...i've never heard of this issue where the module rotts to the point the circuit board is exposed....

DORMAN68

Here is a link showing the issue with these modules.




http://www.fordf150.net/articles/idx...ition-DTC.html

Keeblerz28

Yes, I was looking for that article to link.

DORMAN, I find it interesting that the Tinman from the Wiz of Oz was rusting at all... Industrial tin plating is used to coat steel to protect it from corrosion. http://www.reliableplating.com/tin.html