What would be causing my 3a instrument panel fuse to blow?
The instrument panel lights will not work on my 1974 ford. I have replaced the old headlamp switch was broken. However, the 3a light fuse is still popping every time I turn on the dimmer for the instrument panel. Any help would be appreciated.
you have a short in wiring
You may have hooked the wrong wire to the new switch or pinched the wire going to the dash lights. When a fuse blows immediately, it usually indicates a short circuit to ground.