need help fast!

**ms2004F-250** · #1 (**permalink**) 03-06-2012, 08:18 AM

ok guys i have a 2004 f250 6.0 diesel and my brake lights turn signals and hazzards dont work. checked fuses and #18 was blowen so i replaced it and everthing worked for 2 days now not working again. everything else works fine. please help asap! thanks!

**SuperCrutyPS** · #2 (**permalink**) 03-06-2012, 08:29 AM

Did the fuse blow again?
Have you checked....your flasher? ....your brake light switch on the pedal? ....the bulbs themselves? ....is there water in the taillight housings? ....the wiring harness under the back of the truck? Do you have a trailer plug in the back that could have water in it?

I'm throwing out stuff I would check.

**ms2004F-250** · #3 (**permalink**) 03-06-2012, 08:32 AM

yes it blew again but bulbs are all good. no water in anything. but have not changed the flasher or the brake light switch....and what wiring harness??? just dont know what to do first

**Term3** · #4 (**permalink**) 03-06-2012, 09:21 AM

It may be grounding somewhere due to loose wire rubbing on the frame or something. Good luck wiring issues can be hard to track down.

**ms2004F-250** · #5 (**permalink**) 03-07-2012, 05:29 PM

Ok quick update. I replace the multifunction switch and it was good all day and now I just came out to go get some fuel and the shi* isn't working again. Any ideas guys. Need this fixed bad!!!!

**southend** · #6 (**permalink**) 03-09-2012, 05:30 PM

check to see if your trailer wiring harness is chaffed....check your alternator also.....

jesilvas · #7 (**permalink**) 03-09-2012, 05:41 PM

If it's blowing fuses, I usually look for a chaffed wire shorting the circuit.

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