"Gauges" fuse blowing on '92 Corolla

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  #1  
Old 06-23-08, 02:57 PM
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Location: Orlando, FL
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"Gauges" fuse blowing on '92 Corolla

I had the a/c compressor replaced on my '92 Corolla a few weeks ago. I drove it for about 2 weeks when the fuel gauge, temp gauge and the entire ac/blower system quit working. There's a 7.5a fuse labeled "gauges" that had blown. I replaced it and everything came back to life. It's burning out about every week now.

The a/c was down for about 6 months and this never occurred before.

My mechanic thought it might be the a/c condenser relay - it's on the same circuit. I found a used one and put it in, but with no success. I haven't taken it back yet to be looked at and was hoping to get some suggestions here. Is there anything connected with the compressor that could be causing this?

Thanks!
 
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  #2  
Old 06-23-08, 06:00 PM
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Join Date: Jun 2008
Location: Maryland
Posts: 298
Put an ammeter in series with the fuse.
If the steady state current is nowhere near the fuse limit there might be intermittent current spikes blowing the fuse. Shake, rattle, roll and tap on components to see which is causing intermittent high current drain.
If the current is very near the fuse limit look for which branch(es) fed by this fuse has high current.
I suppose you could also have gotten a batch of bad fuses.
 
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