How do I start my Duramax after running out of fuel?
Prime the fuel system by turning the ignition on (Run position) for 30 seconds, but do not start the engine. This allows the pump to prime the system. Turn the ignition off, and then crank it for 15 seconds. If it does not start, repeat the first task and this one until it starts (cycle the key).
What causes a Duramax to lose prime?
A common problem with high-mileage 2001-2010 Duramax trucks is that the fuel filter head assembly begins to develop air leaks. With age as well as use of ULSD and bio-diesel fuels, the O-rings in the filter head assembly can begin to allow air to bleed into the system, causing the fuel system to loose its prime.
What’s better Fass or AirDog?
The FASS comes with a bracket that is specific to the model of vehicle, the AirDog is more generic, but allows more flexibility for user preferred install location. For ease of installation, I prefer the FASS setup, but for flexibility, I prefer the AirDog setup. This is your choice here.
Does Duramax have fuel pump in tank?
The GMC and Chevy Duramax pick-up trucks do NOT have a lift pump to supply fuel to the engine. From the factory, the CP3 injection pump is the truck’s only means of getting fuel from the tank to the engine.
Is FASS worth the money?
But it’s well worth it. The pump doesn’t have to pull from out of the top of the tank. If you want to upgrade your your truck it’s an awesome place to start. I would recommend Fass to everyone.
Are FASS fuel pumps loud?
Clogged filters will cause the pump to cavitate and become loud. Majority of the time a restriction on the suction side of the pump will be a clogged screen on the bottom of the fuel module inside the fuel tank. Excessive pressure could also cause the unit to over amp and become loud.
How do you Prime a GMC Duramax Diesel?
On top there is a primer cylinder and a plastic bleeder screw. Pump the cylinder until it gets hard, then crack the bleeder and let the air out. Repeat the process until fuel comes out and the truck stays running. It may take a few cycles of starting up and shutting off, but it will stay running when you get enough fuel up there.
Where is the primer cylinder on a Duramax Diesel?
On the passenger side of the motor you will find the fuel filter assembly. On top there is a primer cylinder and a plastic bleeder screw. Pump the cylinder until it gets hard, then crack the bleeder and let the air out. Repeat the process until fuel comes out and the truck stays running.
How to tell if your Duramax Diesel Turbo is gone?
All models should check in at 20 psi of boost maximum, with the rpm at about 1,800 for 2003 to 2004 LB7 motors and 1,600 for all others. Squirt the tube connections with soapy water and watch for bubbles. If your boost reads low, the turbo might not be at fault, so check for boost leaks first.
How many horsepower does a GM Duramax have?
GM was eager to develop and speed to market the 6.6-liter LB7 Duramax, which produced 235 horsepower. Later versions including the LLY, LBZ, LMM and LML would use more sophisticated turbos and engine controls, ultimately increasing both horsepower and torque by about 80 percent from 2001 to 2011.