If you're experiencing fuel pump issues, the problem likely lies elsewhere:
* Low fuel: The most common "fuel pump" problem is simply a low fuel level.
* Fuel pump relay: A faulty relay can prevent the pump from powering on.
* Fuel pump fuse: A blown fuse will also stop the pump.
* Fuel pump itself: The pump might be failing due to age or wear.
* Wiring issues: Damaged or corroded wiring can interrupt the power supply to the pump.
* Inertial switch: Some vehicles have an inertial fuel pump shutoff switch (usually under the dash or in the engine compartment) that might have tripped due to a collision.
Before assuming the pump itself is bad, you should check the fuse, relay, and wiring first. If you're not comfortable doing this yourself, take your Blazer to a mechanic for diagnosis and repair.
