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pointers on trouble shooting no gauge power


Guest Anonymous
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Guest Anonymous

I could use a few ideas and tips to keep me in the right direction.

No power to gauges-fuse #12 keeps blowing ('74 carb '02)

I'm going to reach under there and see what's going on. I may try to reinforce the ground from gauges to body. After that, I could use some ideas on next steps....

thanks,

Neil

San Mateo, CA

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Guest Anonymous

and use an ohmmeter to check each wire for continuity to ground. If one of them is grounded (i.e., a reading of 0.0 ohms or close to it) that is probably your culprit. If your fuse blows immediately when you turn on the key, this may work. Unfortunately, most shorts are intermittent, from a spot where the insulation has worn through or cracked, making contact as things flex while you drive.

I don't have a wiring diagram for a '76, but I believe this circuit includes the electric choke, oil pressure warning light, fuel and temp. gauges, tachometer, handbrake switch and brake fluid level indicator. Of these, the likely suspect would be the choke.

Chris B.

'73 ex-Malaga

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Guest Anonymous

coming into #12 fuse. If there's one that isn't in the diagram, chances are it's the seatbelt warning light. On my '73, the switch in the seat shorted out and caused the same problem. I found it when I was checking the fuse box and discovered a wire that wasnt' in the diagram. It was the culprit. I disconnected from the fuse box it and taped it out of the way. Problem solved. Hope that's it.

If not, try disconnecting the wires on the outlet side of #12 fuse one at a time till the fuse quits blowing.

Cheers

Mike

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