A faulty fuel pump can cause erratic starting, low engine output or even leave you stranded by the side of the road. With a few simple tools, you can have your Lexus ES300's fuel pump replaced in no time.
Disconnect the ground cable from the negative battery terminal.
Take out the rear seat.
Remove the fuel pump cover and fuel filler cap.
Disconnect both the outlet pipe and the return hose from the pump bracket. Disconnect the electrical wire.
Loosen all eight screws, then remove the fuel pump/bracket assembly. Be sure to remove the old gasket.
Use a new gasket when reinstalling the fuel pump. Slide the pump into position and tighten the screws to 35 inch-pounds.
Reconnect the fuel line and the return hose to the pump housing. Tighten the bolts to 22 foot-pounds.
Reconnect the electrical wire. Reinstall the fuel pump cover and the rear seat cushion.
Reconnect the ground cable to the negative battery terminal.
