Well I fixed it tonight, all a guy has to do is remove the 2 nuts holding the contactor switch to the housing.
Once removed you will see 4 small screws holding the metal base to the plastic switch.
Once that's off the magnet coil assembly falls right out so be careful.
A little 400 grit on the contacts to shine the rust off and she's good as new.
No more buzzing.
I gave it a shot of wd40 also to keep the corrosion at bay.
Hopefully my post helps someone with similar issues.