Blowing Fuses? - Team Camaro Tech
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post #1 of 8 (permalink) Old May 3rd, 06, 06:34 AM Thread Starter
 
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Blowing Fuses?

Hi Folks!
I have a 69 that has started blowing fuses. The first one was for the dash lights and the second and third was when I turned on the radio. This happens with the engine running.
I read a thread on checking some voltages and will do that today; just wondering if I should look elseware.
Thanks, Brian
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post #2 of 8 (permalink) Old May 3rd, 06, 07:05 AM
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Re: Blowing Fuses?

More info please what fueses, whats been done on the car lately, any prior symtoms , things like that.
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post #3 of 8 (permalink) Old May 3rd, 06, 11:47 AM
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Re: Blowing Fuses?

this happened to my car for awhile, it turned out that the wiring loom between the radiator and core support was rubbing against the core support and kept blowing my fuses.
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post #4 of 8 (permalink) Old May 4th, 06, 05:55 AM Thread Starter
 
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Re: Blowing Fuses?

Thanks for the responce; The fuses were the 10 amp for the radio and the 4 for the instrument lamps. I had recently restored the alternator and that checked out good yesterday. I also had removed the dash, but had not messed with the wiring harness. I checked the grounds and they were tight, and had been cleaned up when the dash was apart.
The harness looks in excellant shape (only 38,000 on the car) I put a new style voltage regulator on yesterday and could not get the instrument fuse to blow again but the radio still blows out. It has a factory am/fm mono radio.
Thanks, Brian
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post #5 of 8 (permalink) Old May 4th, 06, 06:10 AM
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Re: Blowing Fuses?

I think you got a bummer happening in the radio itself. I believe both of those lines go there.





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post #6 of 8 (permalink) Old May 4th, 06, 09:12 AM
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Re: Blowing Fuses?

Quote:
Originally Posted by JimM
I think you got a bummer happening in the radio itself. I believe both of those lines go there.
That would be my guess too.

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post #7 of 8 (permalink) Old May 4th, 06, 11:36 AM
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Re: Blowing Fuses?

I'd guess the output transistor in the radio may have wiped out. They can act like a direct short under certain conditions. It should be fairly easy for a technician to check assuming there is one in your area. I've seen that original am/fm radio go for big bucks on eBay, so i'd consider getting it diagnosed and fixed if you can.
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post #8 of 8 (permalink) Old May 5th, 06, 05:17 AM Thread Starter
 
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Re: Blowing Fuses?

Thanks for the input, I'll have the radio checked outI know form looking at the wiring diagrams that the only wire it shares is a ground with everything behind the dash. The power from the horn relay feeds to the fuse block and the power to the radio comes right from the fuse block.
Brian
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