How To Change Fuel Filter On 2003 Yukon

How to Replace a Fuel Filter on a 2003 Yukon

past Gregory Crews

pumping gas image by Mat Hayward from Fotolia.com

The 2003 GMC Yukon uses an in-line fuel filter for removing whatever debris that is in the fuel lines. The fuel pump is located in the fuel tank and suctions the fuel to transport it through the fuel line and eventually to the injectors. In that location is a pocket-sized strainer attached to the fuel pump that catches most of the droppings and prevents information technology from entering the fuel lines. Some of the droppings is small enough to get through the strainer and the fuel filter will remove these particles. Irresolute your fuel filter volition help improve fuel economic system and as well engine performance.

Step i

Open up the hood to admission the engine compartment. Locate the fuse box in the engine compartment. Disconnect the fuel pump relay inside the fuse box. Showtime the truck and allow information technology to idle until it stalls out. Twist off the gas cap on the fuel make full nozzle--this will help to relieve some of the pressure.

Step ii

Locate the fuel filter under the truck. The filter volition exist cylindrical-shaped and located nether the vehicle well-nigh the commuter's door.

Pace 3

Unscrew the outlet line of the fuel filter by turning the fuel line nut with a crescent wrench. Hold the nut on the filter with a crescent wrench. Pull the line abroad from the filter. Unscrew the inlet line in the same style. Take a drain pan standing by, as some fuel may still be in the lines.

Footstep four

Unbolt the filter bracket with a socket wrench. Pull the filter away from the mounting bracket.

Pace 5

Place the new filter in the mounting bracket. Tighten information technology to the frame with a socket wrench. Ensure the arrow on the filter is pointing toward the front of the vehicle. The pointer indicates fuel flow.

Stride vi

Thread the outlet line to the filter past manus. Tighten with a crescent wrench to ensure the nut is tight. Hold the second nut with a crescent wrench to keep the filter from turning. Tighten the inlet line the same way.

Step 7

Install the fuse relay back into the fuse panel. This will provide power to the fuel pump. Screw the gas cap back onto the fuel fill up nozzle.

Plow the ignition fundamental to the "start" position. Leave the key in this position for five seconds, as this volition prime the fuel system. Turn the key to start the truck. Allow the truck to idle for five minutes. Inspect around the fuel filter for leaks.

References

• Automedia: Fuel Filter Tutorial
• "Chevrolet Silverado and GMC Sierra Haynes Repair Transmission for 1999 thru 2006 Total-size Light-duty Gasoline Engine Models. Includes 2000 thru 2006 Suburban, Tahoe, Yukon, Yukon Twoscore, Sierra Denali. 2001 thru 2006 Yukon Denali. 2002 thru 2006 Chevrolet Avalanche. 2007 Chevrolet Silverado Classic and 2007 GMC Sierra Classic and Sierra Denali Classic."; John Haynes; 2007

Tips

• On the 5.3-liter flex-fuel engines, the fuel filter requires a special quick-disconnect tool to remove the outlet line. When pulling the outlet line on this filter, yous will demand to pull the connector out as far as it will go or until the internal retainers hit the stop. Twist one end of the quick-disconnect tool and place it between the filter and the plumbing fixtures. Ensure the tool is parallel and push the fitting toward the filter. This will disconnect the fitting. When installing the fitting, you will need to only button the quick-disconnect fitting back onto the filter until it locks in place.

Things You'll Need

• Crescent wrench
• Drain pan
• Socket wrench
• Socket ready
• Quick-disconnect tool (for 5.iii liter with flex-fuel engines)
• New fuel filter

Warnings

• Employ extreme caution when working around gasoline--it is highly toxic and combustible.

Writer Bio

Gregory Crews has been in the film manufacture for three years and has appeared in more than 38 major move pictures and 16 television shows. He also writes detailed automotive tutorials. His expertise in the automotive manufacture has given him the skills to write detailed technical instructional articles.

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