fuel gauge goes to reserve (light)

2003 SAAB 9-5
100,000 MILES
Avatar
LEE ELMORE
  • MEMBER
  • 1 POST
When fuel tank filled up and fuel pump cuts off fuel gauge will drop to reserve light and stay there for about 100 miles. Also will loose all distant data. After about 100 miles gauge and data resumes and works until next fill up.
Feb 29, 2012 at 6:14 PM
Advertisement
Avatar
SATURNTECH9
  • ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Sounds like there is a bad spot on the fuel sending unit in the full position and other position.Have you checked for codes in the computer yet?If not start there and let me know what you find i need the exact code numbers not code descriptions.Also do you have a multimeter to do some testing?
Feb 29, 2012 at 8:00 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.