cooling fan problems

1998 PONTIAC BONNEVILLE
125,000 MILES • 2WD • AUTOMATIC
Avatar
MARLEY1969
  • MEMBER
  • 1 POST
I have a 1998 pontiac bonneville and the cooling fan will not stop running. How do I fix this problem?
Feb 21, 2011 at 7:26 PM
Advertisement
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Pull the coolant fan fuse that should kill it. Any applicable trouble codes?
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Feb 21, 2011 at 8:45 PM
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Just to add, in the diagram, the pcm controls the ground for the coil side of relay. If ac request, the fan may run? The coolant temp sensor could cause the fan to run?
Feb 21, 2011 at 8:49 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.