What kind of fuel tank does a Silverado 3500 have?
What kind of fuel tank does a Silverado 3500 have?
Some 2015-2018 Silverado and Sierra models and 2019 Silverado 2500/3500 and Sierra 2500/3500 models equipped with the 6.6L Duramax diesel engine (RPOs LML, L5P) and dual fuel tanks (23.5 gallon/89 liter front tank and 40 gallon/151 liter rear tank) (RPO N2N) may have poor fuel transfer or the rear fuel tank may have collapsed. (Fig. 13)
Where is the dual tank balance module located?
This module is located by the front (main) lift pump. Slightly toward the rear of vehicle along the frame rail. On top of this module is a fuel pump balance relay, it turns the rear pump on as needed to transfer fuel. At the module, you have a harness with 6 wires. Unplug it and check the following with a digital volt/ohm meter
Can a GM Truck have two fuel tanks?
Yes, each tank has its own filler. Oddly there is only a single fuel guage that seems to report the total fuel of the two tanks combined. For instance, if I were to fill one tank and leave the other empty, the guage would read about half full.
What should I do if my fuel tank is plugged?
If these conditions are found, replace the fuel tank and fuel pump module. Refer to Fuel Tank Fuel Pump Module Replacement in the appropriate Service Information. In addition, to help prevent the vent from becoming plugged again, install a piece of fuel hose to the vent (Fig. 15, #1) and route it down the fuel feed line.
How does rear tank transfer pump two tank system work?
There have been a few old threads about this, but since it happen to me a few weeks back I thought I would bring this back up for the next guy. For those of us with the two tank arrangement, there is a transfer pump that moves fuel from the rear tank into the front tank as the front tank drops level.
Is the 12V pump always in the front tank?
No, 12v will NOT always be there. It one of the very few thing that does NOT turn on and off based on controlling the ground. Based on the schematics it is controlled by the ECM though a relay. From what I understand as the front tank level drops, at some unknown level the transfer pump will come on moving fuel to the front tank.
How big is the gas tank on a Duramax?
Cab & Chassis models have dual tanks standard, 23 gallon front, 40 gallon rear. Both is standard – and they are also available with just the 23 or just the 40. Well, a little info on the dual tank system for anybodys info.
Where does fuel go in a Duramax 3500HD?
I just got a 2015 HD3500 cab Chassis and while driving it yesterday with the fuel gage showing a quarter of a tank the low fuel light came one and the gage dropped to empty. Also the check engine light came on. I put fuel in the rear tank and then today put fuel in the front tank but was able to get just a little in.
There have been a few old threads about this, but since it happen to me a few weeks back I thought I would bring this back up for the next guy. For those of us with the two tank arrangement, there is a transfer pump that moves fuel from the rear tank into the front tank as the front tank drops level.
What kind of truck has dual fuel tanks?
The work truck I’m issued is a 2015 3500 chassis cab with the dual tanks. I had the same problem twice with the fuel guage dropping to E and the truck only pulling from the front tank.
