Why is my fuel filter leaking on my Duramax truck?
Why is my fuel filter leaking on my Duramax truck?
External fuel leaks can develop as well, and will be evidenced by fuel puddles on the ground or on top of the filter assembly. If you have a high-mileage Duramax-powered truck and suspect that it’s losing its prime, or you have seen evidence of fuel leaks from the filter head, you’ll want to address the problem as soon as possible.
How do you Prime a Duramax fuel system?
To complete the installation the fuel system needs to be primed again by pumping the plunger on top of the filter head then purging the air from the system through the bleeder screw. This process may need to be repeated a few times to get all of the air out of the system. After starting the truck, check for leaks before driving.
What to do if you have a leak in your fuel filter?
After rebuilding and reinstalling the filter assembly you will need to prime the fuel system before starting the truck. Prime the system by pumping the primer plunger repeatedly until it becomes firm, and then start the engine. After starting, make a thorough check for fuel leaks before driving the truck.
Can a Duramax fuel filter be rebuilt without billet?
You can rebuild your fuel filter assembly without the billet parts, but we think the full kit is a wise investment. We followed along with shop technician Jake Phaff as he rebuilt the filter head on a customer’s LB7 Duramax.
External fuel leaks can develop as well, and will be evidenced by fuel puddles on the ground or on top of the filter assembly. If you have a high-mileage Duramax-powered truck and suspect that it’s losing its prime, or you have seen evidence of fuel leaks from the filter head, you’ll want to address the problem as soon as possible.
Is there a fuel leak at the top of the tank?
I dropped the tank down in order to see the top of the fuel pump and the fuel lines, started the truck up, checked around, and couldn’t find any leaks. But, at the top of the tank near the front corner, there is a plastic 90 degree elbow sticking out. I looked around, and then found a plastic vent line that was left hanging.
To complete the installation the fuel system needs to be primed again by pumping the plunger on top of the filter head then purging the air from the system through the bleeder screw. This process may need to be repeated a few times to get all of the air out of the system. After starting the truck, check for leaks before driving.
What kind of truck has a gas leak?
As luck would have it, gas is leaking from the top front end of the main gas tank. Truck is an ’02 Avalanche, 2500 series with the 8.1 liter engine. Apparently this is a common issue with the GMT800 truck.
