What would be causing my 3a instrument panel fuse to blow?

Asked by Apr 19, 2013 at 03:52 PM about the 1974 Ford F-100

Question type: Maintenance & Repair

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.

2 Answers

you have a short in wiring

99,235

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.

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