* Dead battery: This is the most common cause.
* Faulty fuel pump: This requires replacement, not a reset.
* Bad fuel pump relay: This needs to be replaced.
* Clogged fuel filter: This needs to be replaced or cleaned.
* Other electrical issues: A variety of problems with the car's electrical system could prevent the fuel pump from engaging.
If your Blazer won't start, you'll need to diagnose the problem. You can start by checking the battery voltage and trying to jump-start it. If that doesn't work, you'll likely need to take it to a mechanic.
