return or returnless
#1
Does my 03 Sierra Denali have the older return style or the new returnless fuel system... is there anything i could look at and tell. I've heard I have both for mine
#5
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
It is easy to tell, like said, one fuel rail on the driver side will have 1 line, pipe going to it,returnless. The return one will have 2 lines going to the rails on the drivers side..
Here is mine best I got. Return system see the two lines going to the rail. (Don't worry I changed them springs out
)

John
Here is mine best I got. Return system see the two lines going to the rail. (Don't worry I changed them springs out
)
John
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