need help ASAP

[redneck842013]

I have a 1997 ford explorer it keeps burning a white with black stripe wire and a tan w/white stripe wire off the headlight switch I have replaced the switch, all fuses and relays that pertain to those wires, the multi-function switch all lights around the truck even those wires themselves but they continue to burn off and blow out the #3 fuse in the interior fuse panel anyone have any idea what I can do to fix this problem I am excellent with vehicle wiring but this has me stumped PLEASE HELP!!!!!!!

 

[2000StreetRod]

disconnect the GEM

If Fuse 3 only blows when the Headlamp switch is in Park or Head I suggest that you disconnect the C280 connector (with WHT/BLK wire) to the GEM. The GEM can develop an internal short that blows Fuse 3.

 

[redneck842013]

would the GEM cause the two wires to burn and blow out the fuse?

 

[2000StreetRod]

possibly

The fuse size is based on the anticipated load plus a safety factor. The wire size is also based on the anticipated current flow. When the current exceeds the anticipated flow the conductors get hot. I'm surprised the fuse doesn't blow before the wire insulation burns. Did you install a larger capacity fuse? Since the fuse doesn't blow immediately (lasts long enough for the wire insulation to discolor) then there is not a direct short. The GEM is the only active (solid state) device in the circuit.

 

[redneck842013]

Yes I did install a larger amp fuse it calls for a 15amp fuse I installed a 30amp fuse I go any lower than a 30 and it blows instantly as soon as Iturn the light switchy on

 

[2000StreetRod]

light bar?

Have you installed a light bar or some other non-stock lights that get power via the headlamp switch?

 

[redneck842013]

No everything is factory some say it could be the fog lights

 

[2000StreetRod]

which fuse?

The fog lamps receive power from Fuse 8 in the power distribution box.

Which 15 amp fuse was blowing that you replaced with a 30 amp? Was it fuse 3 in the interior fuse panel?

 

[redneck842013]

Yes it is the number 3 fuse that I replaced with a 30amp fuse

 

[firepop5]

Replacing a 15 amp fuse with a 30 amp fuse first overheats wires and burns switches. Then it sets your car on fire. If the 15 amp fuse burn out instantly you have a short somewhere. Get a complete wiring diagram and find that short.