How to Replace a Lexus ES300 Fuel Pump

by Jeffrey Caldwell
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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.


Step 1

Disconnect the ground cable from the negative battery terminal.

Step 2

Take out the rear seat.

Step 4

Disconnect both the outlet pipe and the return hose from the pump bracket. Disconnect the electrical wire.

Step 5

Loosen all eight screws, then remove the fuel pump/bracket assembly. Be sure to remove the old gasket.


Step 1

Use a new gasket when reinstalling the fuel pump. Slide the pump into position and tighten the screws to 35 inch-pounds.

Step 2

Reconnect the fuel line and the return hose to the pump housing. Tighten the bolts to 22 foot-pounds.

Step 3

Reconnect the electrical wire. Reinstall the fuel pump cover and the rear seat cushion.

Step 4

Reconnect the ground cable to the negative battery terminal.

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