Replacing 2008 Gmc Acadia Fuel Lines: Step-By-Step Guide

The fuel filter in a 2008 GMC Acadia is part of the fuel pump assembly located inside the gas tank. This means that the fuel filter is not a routine maintenance item and does not need to be changed regularly. However, if you are experiencing problems with your fuel pump, you may need to replace it. This involves draining the gas tank, dropping the tank, and taking the electrical connectors and fuel lines loose. You can use a floor jack to lower the tank.

Drain the gas tank

To drain the gas tank of your 2008 GMC Acadia, follow these steps:

• Loosen the fuel filler cap to relieve the fuel tank vapor pressure.
• Raise the vehicle.
• Loosen the fuel fill hose clamp at the tank.
• Disconnect the fuel fill hose from the fuel fill pipe.
• Use a hand or air-operated pump device to drain as much fuel as possible through the fuel fill hose.

Once the tank is drained, you can proceed with changing the fuel lines. It is important to note that you should perform these steps with caution and refer to a professional mechanic if you have any doubts or concerns.

Additionally, if you are performing this procedure due to water contamination in the fuel tank, you may need to repeat the draining process over several days, adding dry gas and fresh fuel each time. This will help ensure that all water is removed from the tank.

Disconnect the electrical connectors and fuel lines

To disconnect the electrical connectors and fuel lines of your 2008 GMC Acadia, follow these steps:

First, drain the gas tank. Then, you need to drop the tank. You will see the fuel module inside the gas tank. Next, you need to take the electrical connectors and fuel lines loose from the gas tank. You can use a floor jack under the tank to let it down.

Please note that this is a complex task and you may need to refer to a detailed guide with diagrams to help you walk through the process.

Drop the tank

To drop the tank, you will need to drain the gas tank first. Then, you can take the electrical connectors and fuel lines loose from the gas tank. You could use a floor jack under the tank to let it down slowly and safely.

Check for fuel leaks

To check for fuel leaks in your 2008 GMC Acadia, start by inspecting the fuel lines and connections for any visible leaks or damage. Look for wet spots, drips, or the smell of fuel, which could indicate a leak.

Next, check the fuel tank and fuel pump for any signs of damage or leaks. Ensure that the fuel cap is secure, as a loose or missing fuel cap can cause fuel to evaporate and lead to a loss of fuel.

Additionally, pay attention to any unusual behaviour or changes in performance, such as:

• Problems with starting the engine
• Stalling, especially while idling
• Excessive vibration while driving
• Rough slow-speed cruising
• Difficulty starting the car or loss of power
• Engine sputtering at high speeds
• Loss of power when accelerating

If you notice any of these issues, it could indicate a fuel leak or another problem with the fuel system, and you should have your vehicle inspected by a qualified mechanic as soon as possible.

It is important to address fuel leaks promptly to prevent further damage to your vehicle and to avoid safety hazards, such as the risk of fire or explosion.

Replace the fuel pump

To replace the fuel pump of a 2008 GMC Acadia, you'll first need to drain the gas tank. Then, you can drop the tank and remove the fuel module. Disconnect the electrical connectors and fuel lines from the gas tank. You may need to lower the tank using a floor jack.

Through an access panel above the tank in the passenger compartment, the faulty fuel pump can be removed and replaced. If there is no access panel, you will need to lower the fuel tank from the vehicle to access the pump.

Once the faulty pump is out, you can attach any reusable brackets and pick-up screens to the new pump before installing it. If your fuel system uses an in-line external filter, it is recommended to replace this at the same time. Ensure all hoses and electrical connections are re-established before adding fuel to the tank and running the engine to test for leaks.

The average cost for a GMC Acadia fuel pump replacement is between $771 and $1,005, with parts priced between $630 and $828, and labor between $140 and $177.

Frequently asked questions