SPONSORED LINKS

Heater blows cold air on left side hot air on.

Tiny
WALKERJAY
  • MEMBER
  • 2003 MITSUBISHI ECLIPSE
  • 99,160 MILES
Heater blows cold air on left side hot air on right how do I repair
Monday, November 19th, 2012 AT 10:18 PM

8 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Sounds like you have a blend door that may not be working properly

Read the guides below on heater system not working and blend door actuator replacement. They will help you figure this out

https://www.2carpros.com/articles/car-heater-not-working

https://www.2carpros.com/articles/replace-blend-door-motor
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, November 20th, 2012 AT 4:05 PM
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,542 POSTS
  • 2002 MITSUBISHI ECLIPSE
  • 98,000 MILES
I own a 2002 mitsubishi eclipse spyder. The heat only gets hot when car is moving. When you come to a traffic light it turns luke warm. Checked antifreeze which was low. Still didnt fix problem. Just started having problem about a week ago. Heat was always really hot before and even when sitting still.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Friday, October 26th, 2018 AT 7:04 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If coolant level is low, after toping up, check for air trapped in system. Run vehicle and let it cool donw before rechecking the coolant level in radiator.
Was this
answer
helpful?
Yes
No
-1
Friday, October 26th, 2018 AT 7:04 PM (Merged)
Tiny
KAMIAJADE
  • MEMBER
  • 1 POST
  • 2006 MITSUBISHI ECLIPSE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 450,000 MILES
When I turn the heat/air on you hear a funny noise like a motor going out. As soon as I turn the air/heat off it stops. No smells
Was this
answer
helpful?
Yes
No
-1
Friday, October 26th, 2018 AT 7:04 PM (Merged)
Tiny
LEONU4
  • MEMBER
  • 15 POSTS
Thanks for the question. Sounds to me like more than likely the blower motor is going out possibly. Or some leaves are traped in the ( squirrel cage) the blower motor fan wheel. I would recommend running it to a local shop or tracing down the noise yourself if you like working on cars. Please let us know what happens. Thank you!
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, October 26th, 2018 AT 7:04 PM (Merged)
Tiny
MEVASQUEZ
  • MEMBER
  • 1 POST
  • 2002 MITSUBISHI ECLIPSE
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
Heater blows cool air. I flushed heater core and it started blowing hot air. Next day it whent back to blowing cool air.
Was this
answer
helpful?
Yes
No
-3
Friday, October 26th, 2018 AT 7:04 PM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Do both heater hoses get hot? If not, you may still hae a restriction in the core. If so, does it have a heater control valve? If it does be sure it is working, if not it may have a blend door (under the dash) problem.
Was this
answer
helpful?
Yes
No
Friday, October 26th, 2018 AT 7:04 PM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Do both heater hoses get hot? If not, you may still hae a restriction in the core. If so, does it have a heater control valve? If it does be sure it is working, if not it may have a blend door (under the dash) problem. Also be sure the system is full of coolant
Was this
answer
helpful?
Yes
No
Friday, October 26th, 2018 AT 7:04 PM (Merged)

Please login or register to post a reply.

Related Heater Not Working Content

Heater Not Working
VIDEO
Heater Not Working
Instructional repair video
Heater Not Working
GUIDE
Heater Not Working
Step 1 - A heater cannot operate unless the engine is full of coolant/antifreeze. If coolant level is low check the system for leaks.
VIEW MORE

Sponsored links