2000 Cadillac El Dorado No heat

45,000 MILES • V8 • FWD • AUTOMATIC
Avatar
BOGEY2
  • MEMBER
  • 1 POST
Although A/C works fine and responds to thermostat setting, the heater produces no heat whatsoever regardless of the thermostat setting. The heating system simply blows air with the various settings of the fan regardless of the thermostat setting.
Is this a heater actuator problem? If so, are there two of these: one for passenger's side and one for driver's side? Does the dashboard have to be removed to fix the problem?
Apr 7, 2010 at 8:15 AM
Advertisement
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Hi bogey2, Welcome to 2carpros and TY for the donation

Inspect and test the thermostat, heater core if its clogged, also if it has a heater control valve check that too. If everything checked out-other causes could be an air mix/blend/mode door problems, Vacuum and actuators or the HVAC control module
Apr 7, 2010 at 9:46 AM
Add a reply
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.

Frequently Asked Problems for This Vehicle