SPONSORED LINKS

The heat blows out cold from under dash

Tiny
AJLAPOINTE
  • MEMBER
  • 1987 OLDSMOBILE 98
I have a 1987 olds 98 regency changed thermostat, but it is still blowing cold, what would be making that happen,
blower motor is working fine, heater hoses are hot when running, when I set it to heater, instead of blowing out the vents on the dash, the cold air is blowing out under the dash (floor)
SPONSORED LINKS
Friday, November 11th, 2011 AT 9:51 PM

9 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Check vent door actuators. Also, check the blend door. It is responsible for the amount of heat you get in the vehicle.
Was this
answer
helpful?
Yes
No
Friday, November 11th, 2011 AT 9:52 PM
Tiny
AJLAPOINTE
  • MEMBER
  • 6 POSTS
Thank you, that was kind of what I was thinking, so that would also make it blow cold instead of hot too?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, November 11th, 2011 AT 10:06 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Yes. If the blend door isn't opening, no heat can pass over the heater core.
Was this
answer
helpful?
Yes
No
Friday, November 11th, 2011 AT 10:24 PM
Tiny
AJLAPOINTE
  • MEMBER
  • 6 POSTS
Is it difficult to fix?
Was this
answer
helpful?
Yes
No
+1
Friday, November 11th, 2011 AT 10:31 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Not hard to fix, but a pain to get to. Limited space.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, November 11th, 2011 AT 10:51 PM
Tiny
AJLAPOINTE
  • MEMBER
  • 6 POSTS
Thank you so much for all your help, appreciate it!
Was this
answer
helpful?
Yes
No
Friday, November 11th, 2011 AT 10:55 PM
Tiny
AJLAPOINTE
  • MEMBER
  • 6 POSTS
I can not find any where that tells me exactly where to find the blend door, can you tell me exactly where it is located?
Was this
answer
helpful?
Yes
No
Wednesday, November 16th, 2011 AT 8:45 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
It is near the heater core in the HVAC box.
Was this
answer
helpful?
Yes
No
Wednesday, November 16th, 2011 AT 9:37 PM
Tiny
AJLAPOINTE
  • MEMBER
  • 6 POSTS
Would I get to it from inside the car in the dash or under the black plastic cover under the hood?
Was this
answer
helpful?
Yes
No
Wednesday, November 16th, 2011 AT 9:56 PM

Please login or register to post a reply.

Related Dashboard Replace/Remove Content

Sponsored links