heater fan not working

opposedtwin
25

Asked by opposedtwin Dec 31, 2007 at 03:43 PM about the 2004 Dodge Grand Caravan

Question type: Maintenance & Repair

the front heater fan on my van is not working. i pulled the fuse and it looks like all the others (not blown) is there a relay on this circuit and if so is it ok to pull it and check it or would that destroy it? my napa store does not have a manual in stock and they say they can't get one that's newer than an '02. any info woukd be appreciated. happy new year!

1 Answer

littlehorn
31,115

There are a couple of things you need to check here. The way that the heater fan works is this: Input from the coolant temperature sensor sends input through a high speed and low speed fan relay in the Integrated Power Module (underhood fusebox.) This then triggers a relay mounted down low on the driver's side near the radiator which kicks the fan on or off. The fan is set to work in a "stay alive" mode if the coolant temperature sensor input is invalid, or if it loses input from either of the two relays in the IPM. So it should run all the time if the coolant temp sensor is disconnected, or either of the relays are pulled from the IPM. The relay on the frame is the most likely culprit here if it is not running at all. Do those tests, then take that relay off if you can't get it to run at all. It costs about $60-70 at the Chrysler dealer. It won't hurt it to remove it. Good luck!

6 out of 6 people think this is helpful.

Your Answer

Add photo

Related Questions

  • HEATER/A/C FAN 1 answer

    Heater and A/C fan speed fluctuates at all settings. Recently replaced the resistor, worked fine for 4 months. Recently fan motor speed began fluctuating at the higher speed settings. In other word...

    Dodge Grand Caravan

    -

    Maintenance & Repair

  • Front Heater Fan 1 answer

    My front heater fan only works on high. Any ideas?

    2003 Dodge Grand Caravan

    -

    Maintenance & Repair

  • my 2000 dodge grand caravan front heater just stop workin but the back one still puts out heat an solutions to my problem here? 3 answers

    A while back actually right before winter started my heater quit thought it was the component back found out that the heater in the back of my van is still working and producing heat so does my van ...

    2000 Dodge Grand Caravan 4 Dr Sport AWD Passenger Van Extended

    -

    Maintenance & Repair

  • fans turns off when you turn off engine even when hot 2 answers

    fans stop as soon as I turn off engine even when the engine is hot

    2002 Dodge Grand Caravan 4 Dr SE Passenger Van Extended

    -

    Maintenance & Repair

  • heater fan inop 1 answer

    heater fan does not work at any spped

    2001 Dodge Dakota

    -

    Maintenance & Repair

Search Dodge Grand Caravan Questions

Dodge Grand Caravan Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,680
#2 dandyoun
dandyoun
Reputation 410
#3 Dan Connell
Dan Connell
Reputation 340
View All

Related Models For Sale

Used Chrysler Town & Country"
359 Great Deals out of 27,947 listings starting at $999
Used Dodge Caravan"
21 Great Deals out of 1,225 listings starting at $1,995
Used Honda Odyssey"
277 Great Deals out of 22,707 listings starting at $1,990
Used Toyota Sienna"
243 Great Deals out of 19,559 listings starting at $1,995
Used Kia Sedona"
61 Great Deals out of 6,078 listings starting at $2,900
Used Nissan Quest"
88 Great Deals out of 4,419 listings starting at $1,700
Used Dodge Durango"
233 Great Deals out of 18,947 listings starting at $1,000
Used Ford Explorer"
769 Great Deals out of 43,510 listings starting at $975
Used Honda Pilot"
270 Great Deals out of 11,908 listings starting at $2,900
Used Toyota Camry"
1,591 Great Deals out of 79,624 listings starting at $1,499
Used Chevrolet Suburban"
281 Great Deals out of 14,264 listings starting at $1,495

Used Cars For Sale

2015 Dodge Grand Caravan For Sale
13,638 listings starting at $16,999
2014 Dodge Grand Caravan For Sale
79 Great Deals out of 4,604 listings starting at $12,890
2013 Dodge Grand Caravan For Sale
63 Great Deals out of 2,484 listings starting at $10,900
2012 Dodge Grand Caravan For Sale
42 Great Deals out of 1,399 listings starting at $7,290
2011 Dodge Grand Caravan For Sale
23 Great Deals out of 707 listings starting at $6,900