Heater has decided to blow cold air only

hosehead
30

Asked by hosehead Jan 02, 2011 at 10:25 AM about the Dodge Grand Caravan

Question type: Maintenance & Repair

Antifreeze is topped up, problem started with intermittent heat, now none at all.  Temperature gauge goes up to just about normal or slightly above - but no heat

6 Answers

Jonathan Furse
1,955

Sounds like some obstruction has gotten into the heater core or the hoses that go to it.

4 out of 4 people think this is helpful.
RHIBDriver
165

I have The same problem with my 93 Grand Caravan. I have replaced all of the hoses the only thing left is the heater core. I even replaced the water pump, thermostat and lubricated the vacuum valve that is online with the heater hose. You may want to check that valve to make sure that it is working properly. Not sure what year your van is, but this valve should be near the firewall online with the heater hose. Make note of the position that the lever on the valve with the heat set to cold. Then move the temp selector to hot and see if the valve opens or changes. You have to have the engine running while you do this because this valve is vacuum operated. You may just have a faulty valve. Or as someone else has already suggested a clogged heater core or hose. I hope this helps to solve your problem. Good luck!

11 out of 11 people think this is helpful.
hosehead
30

Hi Jonathan it was the water pump. We had been having to top up the antifreeze but couldn't find a leak. Finally afer letting it run, parked in a snowy driveway, we found the leak. It didn't show up when we were driving. Thanks for your help

2 out of 2 people think this is helpful.
hosehead
30

Hey, that is a lot of good information. This van is a 2002. Anyway, found the problem, it was the water pump. thanks for your help

1 out of 1 people think this is helpful.
Energetic
70

Your heater core is plugged off, if you go under the hood and reverse the hoses it should clear up for awhile, but you need a new core

2 out of 2 people think this is helpful.
CrystalW
0

I have the same problem and have filed a lemon law suit since it is a 2013 and they have no fix as written to me in an email from Chrysler

Your Answer

Add photo

Related Questions

  • What do you think is wrong if my heater in the car blows hot air when accelerated on the road and then blows cold air? 1 answer

    My dodge caravan blows hot air for a little bit while accelerated and then cold. If I shut it off for a little bit and turn it on it blows hot. What can it be and is it an inexpensive fix? Is this s...

    2008 Dodge Grand Caravan

    -

    Maintenance & Repair

  • 2001 Dodge Grand Caravan Heat blows cold air when on turn it off it blows hot air

    I have a 2001 Dodge Grand Caravan and had to replace the water pump. Ever since I had the water pump replaced my heating and air wont' work correctly. I turn the system on heat and it blows faintly co...

    2001 Dodge Grand Caravan

    -

    Maintenance & Repair

  • my heater wont switch to cool 1 answer

    The heater works great but when I changed it to the cool side it still blows warm, and I no longer hear the sound like before when it would change over, and the air conditioner isn't working either

    2006 Dodge Grand Caravan

    -

    Maintenance & Repair

  • Where do I add refrigerant to my 2008 Dodge Grand Caravan 2 answers

    Coolant is good. If thermostat was no good wouldn't car over heat? It is blowing out cool air not cold. I just tried it after a terrible winter here in New England. Does this mean I need to recharge...

    2008 Dodge Grand Caravan SXT

    -

    Maintenance & Repair

  • Heater blows cold air 10 answers

    I have a 99 Dakota Sport 3.8. In December the heater started going out on it. I have full air flow on all settings, (air, vent, defrost). When it started in Dec, it would only blow hot air on fan ...

    1999 Dodge Dakota 2 Dr STD 4WD Standard Cab SB

    -

    Maintenance & Repair

Grand Caravan
Looking for a Used Grand Caravan in your area?
CarGurus has 37,648 nationwide Grand Caravan listings starting at $999.
ZIP:

Search Dodge Grand Caravan Questions

Dodge Grand Caravan Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,190
#2 dandyoun
dandyoun
Reputation 340
#3 Dan Connell
Dan Connell
Reputation 300
View All

Related Models For Sale

Used Chrysler Town & Country"
1,280 Great Deals out of 42,967 listings starting at $1,000
Used Dodge Caravan"
43 Great Deals out of 1,576 listings starting at $1,195
Used Honda Odyssey"
575 Great Deals out of 26,889 listings starting at $1,000
Used Toyota Sienna"
467 Great Deals out of 24,764 listings starting at $1,990
Used Nissan Quest"
112 Great Deals out of 3,431 listings starting at $1,495
Used Kia Sedona"
153 Great Deals out of 7,770 listings starting at $1,799
Used Dodge Journey"
483 Great Deals out of 26,733 listings starting at $4,999
Used Dodge Durango"
401 Great Deals out of 21,685 listings starting at $1,495
Used Ford Explorer"
955 Great Deals out of 51,803 listings starting at $1,495
Used Ford F-150"
2,930 Great Deals out of 154,936 listings starting at $1,500
Used Dodge Ram Pickup 1500"
832 Great Deals out of 14,604 listings starting at $1,900
Used Chevrolet Suburban"
704 Great Deals out of 20,267 listings starting at $2,495
Used Jeep Grand Cherokee"
1,136 Great Deals out of 56,047 listings starting at $900
Used Honda Pilot"
588 Great Deals out of 30,117 listings starting at $2,500
Used Ford Expedition"
601 Great Deals out of 18,551 listings starting at $1,700