fule pump

Autozone has it for 336.99. go to thier website and log in to be a member and you can find prices, part locators and specs for most cars. they also have car guides like haynes and chilton.

You can get an idea of what this will cost at a repair shop near you, go here and select the "Fuel Pump Replacement" from the service type menu: https://repairpal.com/estimator/chevrolet/trailblazer

You can find a shop here www.repairpal.com/directory and check prices here www.repairpal.com/estimator put in your vehicles info and choose fuel pump replacement