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Gregg
Dodge Dakota
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10/22/2005
18:07:31

Subject: RE: Dakota Heater Problem
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There is a diverter valve effecting water line inlet to the heater core. The actual control of it would be cable if hot to cold is a sliding control with some resistance moving side to side.

The rotary knob style usually are vacuum controlled to a diaphram actuator. These are more difficult to troubleshoot. The actuator is an early suspect if the dash control is not hissing or leaking. Finding the actuator takes the manual or a bit of exploring by ear as someone rotates the control.

It could be in the under dash, hidden in the heater duct system or at the core's inlet firewall side. Test for leaks with hand vac pump, test for movement of the valve. Remember, the diaphram may hold vac but still not mechanically budge a frozen valve.



just a dummy
Dodge Dakota
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10/22/2005
21:47:44

RE: Dakota Heater Problem
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Hah, I guess you all thought I was too stupid to understand any answers.

I never did figure out what splice he was talking about, but I managed to figure it out anyway.

My heater was useless. It started to get that way at the end of last winter and I forgot about it until a recent cold morning. I applied the Dashin Dan heater repair backflush and now the blamed thing practically runs me out of the truck. Whew, I forgot just how hot this heater got.

Thanks!



Mark45
Dodge Dakota
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12/15/2005
18:48:03

RE: Dakota Heater Problem
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well anouther fix from dan i did everything and then i read this add and then i flushed the heater core thanks dan i recomend this flush to everyone who has this problem



marlon
Dodge Dakota
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9/06/2006
02:49:52

RE: Dakota Heater Problem
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Well I wish I had found this info years ago. Now I have put up with no heat for all that time and today using the A/C I got a face full of antifreeze mist blowing out the dash vents. Smelled it, saw it, and found a pool of red water/coolant on the passenger floorboard. Hate to do this core replacement so if anyone has some good tips or trics, let me know. I by passed the core until I have the $1,000 or so to spend on the replacement.



Gordy
Dodge Dakota
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11/10/2006
08:14:55

RE: Dakota Heater Problem
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I have a 1998 Dakota Sport. I had anti-freeze leak out firewall drain, suspected Heater core, now on the passenger side floor. Heat oNly. Do I have to tear the dash out to change or is there an easier way from passenger side of dash/engine plenum?? Winter is coming and the defrost will only cut it so far! Any suggestion would help.

Thanks



Flippy
Dodge Dakota
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11/12/2006
02:35:44

RE: Dakota Heater Problem
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No mang! you have to rip the whole dash out, i had to do it, so do you but remember to just have fun dude.



Another Dak
Dodge Dakota
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11/13/2006
13:34:22

RE: Dakota Heater Problem
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Well, my first Dak, 2000 bought with 26k miles on it never had heat. Sold it a year ago. Now my new beater, 1998 with 176k on it same deal. The heat sux.

Thanks for this thread, I will give this a shot.



daddio
Dodge Dakota
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11/13/2006
14:09:36

RE: Dakota Heater Problem
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Another Dak, have you tried to backflush the heater core? common problem.



Another Dak
Dodge Dakota
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11/15/2006
19:20:24

RE: Dakota Heater Problem
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Yup, I mentioned id give it a shot, and did that today :)Worked like a charm, not a whole lot of crap came out, but enough to make me extremely hot in the truck now, where as before I would drive the truck for over a half hr with the heat on high and still be freezing cold. To think I went 2 winters here in Minnesota with prior with the 2000 Dakota freezing my tail off and was prepared to do the same in the 98.

Went to the local Menards and picked up a package of adapters for $1.99

It took less then an hr to do. But keep in mind that included going down to the well and turning the hose back on, getting the hose out of the back shed and hooking everything back up, then going through the process, putting it all back together and going back down in the well and shutting the hose off and putting the hose back in the shed. Being 30 degrees out and dark didnt make the process any faster :) Oh I suppose I should mention it was up hill both ways and I was stark naked or something.
This is super easy everyone.
Anyone with a hose already out and mid day should be able to do this in 10-20 mins.



Newf
Dodge Dakota
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12/20/2006
23:54:23

RE: Dakota Heater Problem
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Thanks dan, we spent 2 nights at my brothers truck and getting ready to strip the dash, when I found this site. reverse flushed with hot water and I got 4 big pieces of silicone, rust, and lots of other gunk. The heater is like new now. My brothers truck is also a 97 dakota 3.9 I have never had this kind of trouble with a GM, must be a dodge thing.
Thanks again you saved us alot of work and money.



Joe M.
Dodge Dakota
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12/21/2006
00:59:50

RE: Dakota Heater Problem
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a "dodge thing" ???

LOL
geez you found silicone in there
thats from someones sloppy mechinic work

heres a tip for ya though to keep the heat and A/C
in good working order
run them for 15 mins. atleast once a month
(twice a month even better)
in there respective off seasons

ex. run the heat on high in summer

get the cab heated up in winter and through the A/C on


& PS though i hate to admit it
i've owned Chevys and Fords in past yrs
(least till i came to my senses)
clogged heater cores are a common problem
and allways linked to inactivity
(stuff sits in the core and turns to gunk)



Newf
Dodge Dakota
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12/21/2006
22:29:45

RE: Dakota Heater Problem
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I guess who ever done the water pump done a sloppy job on installing it. The water pump had blue silicone on it.
Anyway working great now, for a Dodge.



Hugh Jas
Dodge Dakota
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2/20/2008
12:20:37

RE: Dakota Floor Heat Problem
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I have a slight variation to the problems described here in a 2001 Dakota.
Heat is fine...great even. Comes out everywhere but floor vents. If selector is set to floor, no heat blows at floor, but you can feel the warm air backing up in dash vents and above. Yet feet are still freezing as rest of cab is burning up it is so hot.

What can I check or change to insure floor vent doors are opening when selected?

Thanks



Al Price
Dodge Dakota
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3/10/2008
11:54:35

RE: Dakota Heater Problem
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Could someone please tell me the location of the heater resistor pack on a 2001 dakota



dmc
Dodge Dakota
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10/28/2008
23:20:09

RE: Dakota Heater Problem
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Have a 2002 Dodge Dakota. Have heat but only seems to work when blower is set on high, other settings do not seem to work. Does anyone know what to do for this problem?



jay
Dodge Dakota
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10/29/2008
07:06:01

RE: Dakota Heater Problem
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Hey DMC,

That sounds like the heater fan resistor. It's a very common problem. The resistor is under the dash on the passengers side. I bought a replacement from the dealer (it cost about $20) for my 03 Dakota. It's only held on with two screws and has a wire plug going to it. It takes about 5 minutes to swap out.

Enjoy!



JR
Dodge Dakota
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11/10/2008
16:26:13

RE: Dakota Heater Problem
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Just want to BUMP the "Dan Flush" post. I lived in Virginia for the better part of 3 years and did not use the heater on my '97 Dakota Sport extensively. Came back north and it barely worked going colder when I drove at high speeds. Performed Dan's formula ( see page 2?) and reverse flushed my heater core. I am quite warm now! Dan is the man.

JR



97Dakota3.9
Dodge Dakota
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11/13/2008
11:49:55

RE: Dakota Heater Problem
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Yep. I'll agree with that. Dan is the man - backflush has got me warm again in my truck.



dave 2000 3.9
Dodge Dakota
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12/31/2008
09:33:09

RE: Dakota Heater Problem
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Thanks for your advice Dan. I'm going to give it a shot today. But here's another issue - my temp gauge only gets up to 1/4 way. Replaced 3 tstats - 195's, removed the fan & fan clutch and restricted air floor (cardboard) to radiator, still overcooling. Temp only gets hotter standing still and at 2000 revs. Anys suggestions would be appreciated as I'm running out of ideas where to look.



Roberto Dak99
Dodge Dakota
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1/01/2009
23:09:45

RE: Dakota Heater Problem
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I have a Dakota 99, 3.9L Auto. Now that its really getting cold around here, when its about 45 to 30 degrees I get really good heat, but when the temperature drops from 0 degrees to 5 or 7 degrees below cero I get no heat, just kind of warm air in the mornings, from home to work and from work to home its the same thing when the temperature gets to low, and I drive my truck about 15 to 20 mins on the hwy. Before driving it I let my truck run from 5 to 8 mins. Just recently change a new antifreeze and water pump and the termostat its working good, but I dont think that is the problem. But I'm not sure. Any of you guys had this problem before? Any comments a really apreciate it!...

Thanks...

Roberto Dak99
Minnesota!...



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