Fuel gauge shows empty when full
Thread Starter
Intermediate
Joined: Jul 2007
Posts: 48
Likes: 0
Fuel gauge shows empty when full
Put new fuel pump and sending unit in driver side, also put new sending unit in passenger side. When full it shows empty, must this be reset with tec two scanner.
Thanks Bograndie
Thanks Bograndie
Safety Car
Joined: Jul 2009
Posts: 3,755
Likes: 190
From: Baton Rouge LA
St. Jude Donor '14, '16
When I had this issue on my car after swapping the fuel pump it was because the sending unit was damaged. Unfortunately I think you're going to have to go back in and look but I'd listen to any easier advice others can give.
Safety Car
Joined: Aug 2006
Posts: 4,347
Likes: 25
From: Apache Junction AZ
There is another problem that could be at play. In 2007 GM reversed the the wiring on the sender. You can verify this by running the part number though one of the vendors like GM Parts House. This picture shows the new wiring. In the older version (including 2004 C5 - 2006 C6) the green wires came in from the bottom (you can see the old notches in the gray plastic).
BJK
BJK
Last edited by 07MontRedcp; Aug 22, 2014 at 03:02 AM.
