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Where is the fuel pump reset button on a 2003 Chevy blazer?

There is no fuel pump reset button on a 2003 Chevy Blazer (or virtually any modern car). Fuel pumps are controlled by the vehicle's computer and don't have a manual reset.

If you're experiencing fuel delivery problems, the issue is likely more complex and could involve a faulty fuel pump, relay, filter, wiring, or even a problem with the PCM (Powertrain Control Module). You'll need to have a mechanic diagnose the problem.