the degree light comes on then it starts flashing and my heat goes to cold

1998 PONTIAC BONNEVILLE
14,000 MILES
Avatar
CDENGLER
  • MEMBER
  • 2 POSTS
if it is on 90 it stays on for about 1 min then it starts flashing then no heat only cold
Jan 16, 2012 at 5:46 PM
Advertisement
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Have the HVAC control module checked-
Jan 16, 2012 at 5:50 PM
Avatar
CDENGLER
  • MEMBER
  • 2 POSTS
where is the hvac module at?
Jan 16, 2012 at 6:10 PM
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Its on the right side of the dash-also scan the computer for code/s
Jan 16, 2012 at 7:02 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.