Heater has decided to blow cold air only

hosehead
50

Asked by 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

8 Answers

Jonathan Furse
2,885

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

11 out of 11 people think this is helpful.
RHIBDriver
205

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!

15 out of 15 people think this is helpful.
hosehead
50

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

3 out of 3 people think this is helpful.
hosehead
50

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

2 out of 2 people think this is helpful.
Energetic
80

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

3 out of 3 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

adamq
10

are the ac light and the receurculate lights flashing if so try re calibrating it first there is a video on you tube its hvac calibration 96-2000 mini vans

1 out of 1 people think this is helpful.
Tsban
20

Strange but true,do not turn your fan motor on high for the first 10 minutes-Dodge Tech.

2 out of 2 people think this is helpful.

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

  • 2000 grand caravan heater doesn't work when cold

    I have two heater problems, and I'm not sure if they are connected or not. First, and worst, when its in the 20s or below when I start it the front fan won't even come on. The back heater works ...

    2000 Dodge Grand Caravan

    -

    Maintenance & Repair

  • what could it be that the heater is sendig cold air 1 answer

    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

  • Heater blows cold air 11 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 36,980 nationwide Grand Caravan listings starting at $1,900.
ZIP:

Search Dodge Grand Caravan Questions

Dodge Grand Caravan Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,130
#2 FordNut
FordNut
Reputation 530
#3 dandyoun
dandyoun
Reputation 500
View All

Related Models For Sale

Used Chrysler Town & Country"
399 Great Deals out of 40,868 listings starting at $1,390
Used Honda Odyssey"
288 Great Deals out of 31,465 listings starting at $1,198
Used Toyota Sienna"
284 Great Deals out of 22,847 listings starting at $1,488
Used Dodge Caravan"
1,244 listings
Used Kia Sedona"
75 Great Deals out of 7,758 listings starting at $1,900
Used Nissan Quest"
67 Great Deals out of 4,357 listings starting at $2,488
Used Dodge Journey"
337 Great Deals out of 40,625 listings starting at $2,700
Used Dodge Durango"
232 Great Deals out of 20,645 listings starting at $988
Used Ford Explorer"
586 Great Deals out of 50,826 listings starting at $1,500
Used Chevrolet Traverse"
405 Great Deals out of 29,847 listings starting at $6,000
Used Chevrolet Suburban"
410 Great Deals out of 21,786 listings starting at $2,490
Used Chevrolet Tahoe"
557 Great Deals out of 31,349 listings starting at $1,500
Used Chevrolet Equinox"
709 Great Deals out of 53,295 listings starting at $1,500
Used Dodge Ram 1500"
600 Great Deals out of 13,871 listings starting at $699
Used Jeep Grand Cherokee"
781 Great Deals out of 67,087 listings starting at $900