Electric Issues

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TahoeSquirrel

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2003 Tahoe electrical problems, when I hit a bump cluster lights come on 1.Battery,2. Brakes 3. Driver , and radio cuts off ? I’ve change ground wire from the back of engine ?????
 

Fless

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Welcome to the forum from Colorado!

The cluster lights (which ones?) come on but the battery, brakes, driver, and radio cut off? Could you describe the symptoms a bit more in detail?

Any recent work, other than the cylinder head-to-body ground (??) was changed?

Is the positive battery cable clean and tight, and the red box connections on that cable clean and tight?
 

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