Did a little preventative maintenance today! I dropped my spare tire and cleaned my fuel pump module. I replaced it two years ago and put some spacers between the frame and module to slow the corrosion. Not really surprised it was pretty well corroded again, but I inspected it and cleaned it up with wire brush and pb blaster and put some electrode grease on the connector. Before I installed it I used anti seize on the bolts. I also put some grease on the spare tire cable and worked it up and down. Next is fuel filter,front and rear differentials, transfer case, tranny flush

 

i just did mine not to long ago. here was mine

 

That's what my first one looked like!

 

Did mine last week when I was have ing hard to start prob... didnt really fix that but was glad to replace it lol. Mine came with some rubber bushing or a stud mount option

 

This if one of the few good things about california lol mine still looks brand new from 2004

 

I read this thread with great interest and figured I'd have a look, guessing that my FPDM had never been touched.... and boy was I right....

Here it is before I touched it. Sure enough, it had never been touched...


When I took it off (twisting the head off one bolt but no biggie - vise grips to the rescue) this is what it looked like. Notice it was cracked wide open and the board inside open to the elements. It's a wonder this worked at all.


and another... one end actually fell off!


And the new one....




I'm certainly glad I caught this now and not out on vacation and over the road somewhere. Then the $108 CDN would have seemed like a really good deal for sure. Thanks to the OP for the very, very useful info and the heads up. Of course while I was under there I greased and lubed up the spare tire winch, checked the pressure in the spare and installed a new fuel filter for good measure. This site is awesome

 

Wow,thats the worst one iv'e seen yet! Your welcome for the info and heads up!

 

Has very little to do with climate and everything to do with science. 2 dissimilar metals touching will cause corrosion in any climate. However a salty climate will accelerate the process.

 

def gonna replace this on my truck asap....

 

this just moved to the top of my list for inspections