2003 GMC Sierra

2003 GMC SIERRA
73,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
CHASEWRD34
  • MEMBER
  • 1 POST
I ran my truck out of gas and put new gas in and now when i try to crank it nothing happens. The fuel pump will not come on and starter will not do anything. I even hooked it up to a pocket scan and it didnt come on. Also the radio and lights all work.
Feb 11, 2011 at 8:35 PM
Advertisement
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Key on, check for ref voltage at one of your sensors, example, tps. If nothing, I'd have to check voltage and grounds at the computer.

Pin 16 at your datalink connector has to have voltage, pins 4 and 5 are grounds.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Feb 11, 2011 at 9:01 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.