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Ecm battery fuse and gages blow 1997 blazer s 10?

Here are some possible causes for your ECM battery fuse and gauges blowing in your 1997 Blazer S-10:

1. Short Circuit: Look for any exposed wires or damaged insulation that could be causing a short circuit.

2. ECM Issues: The ECM itself could be faulty, causing excessive current draw and blowing the fuse.

3. Faulty Gauge Cluster: A problem within the gauge cluster can lead to a short circuit as well.

4. Bad Ignition Switch: Check the ignition switch and its wiring for any issues.

5. Alternator Problems: A faulty alternator or voltage regulator can cause electrical issues including blown fuses.

To properly diagnose and resolve the problem, consider taking your vehicle to a qualified mechanic with electrical expertise.