2005 Gmc Sierra Temp Guage 210 Normal 235 Back Down Normal Hear Humming Fan

2005 GMC SIERRA
73,000 MILES
Avatar
WALLS.LANDON
  • MEMBER
  • 1 POST
temp guage going from 210 (normal) to 235 and then back down to normal.
I hear a humming from the fan in the engine. When I am turning it off I hear a release of air or fluid. This was after an oil change and service from the dealership. What is it? Thanks
Jan 18, 2013 at 3:00 AM
Advertisement
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
could be low in coolant or the thermostat is bad, not opening on time.

humming is the fan clutch most likely from the motor running hot

Roy
Jan 18, 2013 at 3:10 AM
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.