Fuel pump

[steveoe]

so I need a new fuel pump and I was gonna order it from rock auto and I have an 08 ltz and they have two ports or three ports. Does anyone know or how to look it up? The vin is a 0 thanks for the help

 

[OR VietVet]

Do you have flex fuel or gas? By the way, how about telling, at least me, the engine size.

 

[steveoe]

5.3 flex fuel

 

[OR VietVet]

More Information for GM GENUINE MU1711

The choices at RA clearly say "gas" or "flex fuel".

 

[Joseph Garcia]

Enter your VIN, and it should direct you to the proper part number. If it does not, then try GMPartsDirect.com and enter your VIN there.

 

[petethepug]

In general on GM full size SUV they used the three port fuel pumps on the 07 & 08 5.3 & 6.2 motors.

Two of the lines are fuel supply & return. The early 07 & 08 three port design use the same, but the thrid hose in the center goes to the evap canister, then into the fuel tank.