My truck doesn't respond at all to my key being in on position

Asked by Aug 26, 2013 at 09:57 PM about the 2004 Ford F-150 FX4 Ext. Cab 4WD

Question type: Maintenance & Repair

Today as I was going down the road the electronics in my truck ie. lights, tach, radio,
windshield wipers stopped functioning. This afternoon I took the battery at it was
charged. When I installed it the lights and electronics came on but the lights inside
blinked. When I turned the key to crank the truck it didn't act as thought I had done
anything. It was suggested that maybe my battery dropped a cell. I bought a new battery
and after installing it I had the same results.

3 Answers


Sounds like a bad ground or something grounding out.


First thing is check your battery clamps and cables, check for black corrosion on the clamps, check the battery cables for a bulge in the insulation, that may indicate a corroded cable internally, check for loose connections at both ends, check for blown main fuses.

I'e checked the ground at the firewall from the battery, to the motor and I've checked the connections to the startes. What I have found is in the area with the fuses in the cab above the fuses is the wiring harness plugs. Somewhere in that area it is a constant clicking noise when the key is on.

Your Answer


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