Where is the fuel reset switch on 2002 GMC Sierra 1500?

There isn't a fuel reset switch on a 2002 GMC Sierra 1500 (or most modern vehicles). Fuel systems are far more complex than simply having a switch to reset them. If you're experiencing fuel-related problems, such as the engine not starting or running poorly, it's not a simple switch fix.

Possible causes of fuel-related problems could include:

* Empty fuel tank: The most obvious cause.

* Faulty fuel pump: This is a common issue.

* Clogged fuel filter: A dirty filter restricts fuel flow.

* Problems with the fuel injectors: These can become clogged or malfunction.

* Issues with the fuel pressure regulator: This regulates fuel pressure to the engine.

* Bad PCM (Powertrain Control Module): This is the "brain" of your engine's fuel system.

If you're having fuel problems, you'll need to diagnose the specific issue. Taking your truck to a qualified mechanic is the best way to determine and fix the problem.