What is the cause of the heater to blow cold air when the car is obviously warmed up?

Asked by MTGrizzly Dec 24, 2015 at 12:23 PM about the 2008 Mercury Milan V6 Premier

Question type: Maintenance & Repair

My 08 Milan has started to blow cold air when heat is needed.  I can set
the temp at maximum, in either auto or manual modes and even though
the car is obviously warmed up, I get lukewarm or cold air.  I do notice that
if I run the car at faster speeds I can get the air temperature to increase,
but that is usually temporary, especially if I come to a stop and just idle.
Any ideas where to start with troubleshooting or is there a common part
that is the culprit?   Thanks.   Steve

65,450

firebird338 answered 8 years ago

First check the anti freeze level may be just low if ok replace thermostat.

4 people found this helpful.

Mark helpful

223,885

Rowefast answered 8 years ago

Ditto...

3 people found this helpful.

Mark helpful

Guru5F62M answered 6 years ago

I changed thermistat also changed hoses bled the hose put heat on high still cold air

5 people found this helpful.

Mark helpful

Your Answer:

What is the cause of the heater to blow cold air when the car is obviously warmed up? 3 Answers

My 08 Milan has started to blow cold air when heat is needed. I can set the temp at maximum, in either auto or manual modes and even though the car is obviously warmed up, I get lukewarm or cold ai...

2008 Mercury Milan V6 Premier

-

Maintenance & Repair
AC question for 2007 Merc Milan, short trips AC blows cold, longer trips 1-2 hours AC works great for a while, the stops blowing cold and blows hot. If I cut the unit completely off, still driving, in 15-20 minutes, turn unit back on to AC, bingo, works great again for 1-2 hours. Of course, when taken to Mercury Dealer, they can't find a problem, it's working great, "if it anit broke we cant fix it". Yep, I know. Only does this on 1-2 hour trips. Help ! Was told it is a blower door problem. However, I hear water/ice sounds when turned off. Is it freezing up? Blower door? Help needed. 2 Answers

short trips AC works great, longer trips on road trip 1-2 hours, blows cold then all of a sudden blows hot. I have found through trial and arrow while driving same trip, shut off unit completely fo...

2007 Mercury Milan I4

-

Maintenance & Repair
Why would the engine shake at idle and check engine light be on? 2007 Milan 3 Answers

After being warmed up the car runs fine but it is shakes and sounds like a fourwheeler when its running at first start up.

2007 Mercury Milan

-

Maintenance & Repair
own 2010 mercury milan car turns off while driving, car is jumping as if it wants to take off fast, when at stop light car is shaking, when i fill my gas tank up the starter keeps running turn off on 6 Answers

own 2010 mercury milan car turns off while driving on highway it has occurred several times. , car is jumping as if it wants to take off fast, when at stop light car is shaking, when i fill my gas tan...

2010 Mercury Milan V6 Premier

-

Maintenance & Repair
i have a rotten egg smell in my car what is it 1 Answer

I smell eggs when I am driving my car. I used to get 427 miles to empty when I fill up now I get 350. It sometimes has a slight jerk when driving. My check engine light came on so I got an oil change ...

2008 Mercury Milan V6 Premier

-

Maintenance & Repair

Looking for a Used Milan in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

What is the cause of the heater to blow cold air when the car is obviously warmed up?

3 Answers

Your Answer:

Looking for a Used Milan in your area?

Shortcuts

Search Mercury Milan Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

What is the cause of the heater to blow cold air when the car is obviously warmed up?

3 Answers

Your Answer:

Related Questions