99 f250 5.4 SD vss sensor code
It pulled a vss sensor code from autozone. I replaced it and it didn't fix it. The check engine light would turn off after about a week. The check engine light would come back on than the same things will happen. Once again it pulls a vehicle sensor code.
For one the passenger top plug on the transmission was water logged, it was soaked in water, it's got a recent rebuilt transmission. Since there was a loud buzzing coming from the fuse box probably means something is grounded, or rain water.
Turns out water was leaking from the windshield down on the fuse box and transmission plug. I did a quick clear silicone repair around the windshield and it hasn't happened since.
Having the windshield replaced shortly.
Hope this helps anybody.



