Service Fuel System
Thread Starter
Advanced
Joined: Feb 2010
Posts: 63
Likes: 13
From: Mission Hills CA
Service Fuel System
I am getting a Service Fuel System message, and my fuel gauge goes to empty. The Threads on this forum are from 2005. Has anyone found a cure other then drop the tank and replace the sender? Thanks Tom
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
There is a flash for this issue on the 05. It was a common problem when they were new. My tank was lowered and the sending unit replaced. Shortly after that GM released a flash that took care of the problem. Check it out with your dealer. 
Thread Starter
Advanced
Joined: Feb 2010
Posts: 63
Likes: 13
From: Mission Hills CA
So the latest is, at 225 miles which is less then half so that would be the left tank, the gauge went to empty and the service fuel system went on. I got home unhooked the battery terminal for 10 minutes hooked it back up and all was fine. ?? Is there any fix other then replacing the left sender? Thanks Tom
Instructor
Joined: Oct 2003
Posts: 226
Likes: 0
From: Palo Alto Ca
service fuel system
Just went thru this mess ...The in tank sending unit is they have to drop the tank to get to it I had them replace both I have 80,000 miles on the car and it is not much more to replace both labor is the killer hope you are under warrnity it is pricey 
Good Luck
Good Luck
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Racer
Joined: Oct 2005
Posts: 435
Likes: 0
From: Katy The Republic of Texas
cost of replace?
What was the bill for the replacement? Did you get both L/R done? Is there a thread about the flash? Mine is a 2006, 64k miles. Yesterday the gauge was at about 9/16, then dropped to 7/16, then started CLIMBING, all the way to 3/4, in the span of about 10 miles. Pulled off and topped of tank, showing FULL and appropriate range on DIC. Appreciate any facts or even anecdotes about similar problems.