Engine/Transmission (1998.5 - 2002) Help, truck keeps blowing 20 amp brake fuse

[cmills]

I got home from plowing snow this morning and I noticed that the brake lights were not working so I checked the 20 amp fuse under the hood and noticed it was blown, I then put another fuse in it and I hit the brake pedal 10-15 times and they worked fine, so I did some driving around and when I got home I noticed the brake lights weren't working again, checked the fuse and it was blown again, at $5 a piece I don't want to keep doing this.



Any ideas as for what to look for?





thanks,

Cory

 

[cmills]

brake light switch

could the brake light switch be bad and cause this, or would it have to be a wire grounding out somewhere?

 

[Sageair]

Is it possible that you are getting snow or moisture in your trailer electrical plug?

 

[cmills]

trailer plug

thanks, but I already checked that and it was ok.



thanks again,

Cory

 

[jeepit]

Most likely the cause is a wire grounding out. You will have to follow brake wires all the way to tail lights and check them. You may have a wire that has frayed and is grounding itself.

 

[southpaw]

blown trailer fuses

I have had the same problem several times , However the first time the problem was of all things the factory relay. I replaced it and all was well for a long time then fuses started to blow . As advised above the other failures were bad wires, critters just seem to like chewing on plastic and will strip a wire of its insullation. so now I check it after not being used for a while. good luck on your search.