Fuel Delivery and Air Induction: Service and Repair

Fuel System Cleaning

1. Remove the sending unit. Refer to Fuel Sender Assembly Replacement (Regular Cab w/26 Gal Tank) (Fuel Sender Assembly Replacement (Regular Cab w/26 Gal Tank))Fuel Sender Assembly Replacement (Regular Cab w/34 Gal Tank) (Fuel Sender Assembly Replacement (Regular Cab w/34 Gal Tank))Fuel Sender Assembly Replacement (Extended Cab w/26 Gal Tank) (Fuel Sender Assembly Replacement (Extended Cab w/26 Gal Tank)).
2. Inspect the fuel strainer. Replace a contaminated strainer and inspect the fuel pump.
3. Inspect the fuel pump inlet for dirt and debris. Replace the fuel pump if you find dirt or debris in the fuel pump inlet.

Important: When flushing the fuel tank, handle the fuel and water mixture as a hazardous material. Handle the fuel and water mixture in accordance with all applicable local, state, and federal laws and regulations.


4. Flush the fuel tank with hot water.
5. Pour the water out of the fuel sender assembly opening.
6. Rock the tank to be sure that removal of the water from the tank is complete.
7. Install the sending unit. Refer to Fuel Sender Assembly Replacement (Regular Cab w/26 Gal Tank) (Fuel Sender Assembly Replacement (Regular Cab w/26 Gal Tank))Fuel Sender Assembly Replacement (Regular Cab w/34 Gal Tank) (Fuel Sender Assembly Replacement (Regular Cab w/34 Gal Tank))Fuel Sender Assembly Replacement (Extended Cab w/26 Gal Tank) (Fuel Sender Assembly Replacement (Extended Cab w/26 Gal Tank)).