Electrical

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DO NOT replace the main fusible link with a fuse or circuit breaker as recommended by some.
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A better fix than the APC for the alternator exciter wiring overheating issue
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44
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Gauge issues could be poor connections at the electrical connector pins
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A flow chart to help troubleshoot why the engine alternator may not be charging, by Ken Burton
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An excellent document on the electrical ground systems in the GMC
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Read this before switching to a one-wire alternator. Also warning of effects on fuel injection.
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