About Van Expertise I can answer most questions concerning 4X4 engine, drive line, suspension, electrical, and fuel, both diesel and gasoline. Ford, GM, and Dodge, old and new.
Experience I have been maintaining a fleet of approximately 55 light, medium and heavy vehicles for over 20 years. Most are 4X4 pickups and off road fire fighting trucks.
Question my running lights went out and the fuse keeps blowing even with the truck turned off the fuse arcs when trying to install a new one and blows immediately, can anyone help with this problem?
Answer Hello dky,
There is for sure a dead short somewhere.
The easiest place to check is the bulb sockets, especially if you recently replaced any of the bulbs.
Remove all the bulbs, and try another fuse, after first making sure the contacts in the sockets are not touching the socket housing.
If it still blows a fuse, either the switch is bad, or a wire is pinched, melted, chewed, or something, allowing direct contact with the vehicle body.
You are just going to need to eliminate possibilities till it is narrowed down.
