Having problems with your 1991 GMC C2500 ?
1991 GMC 2500 5.7l short with alternator and positive battery post off.
\015 Battery was fully discharged. i connected battery charger to battery and did not get any place with that. Took my multimeter to battery and found .5V. I disconnected battery posts(positive) and found dead short from there to negative battery posts or body of the pickup. Then I disconnected alternator plugs and still short.\015
Repair Help & Product Troubleshooting for 1991 GMC C2500
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