Just put a fuel pump on 2002 Tahoe. The fuel pump was working when I first put it on but still wouldn’t crank. Now the dash board has went out. Attempting to get started now. When I turn the key, the only thing it shows is a check engine light. But the gauges won’t move, the message board doesn’t light up and the fuel pump isn’t buzzing any more. I need help I’m out of answers
Fuel pump isn’t buzzing
First thing to do would be to make certain the battery is fully charged. A weak battery can lead to confusion during diagnostics from false readings. So, charge the battery or replace it with one that is fully charged before continuing with your diagnostics.