Question about Dodge Dakota

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Air will only come out defrost vents

The only knob on the ac/heating control panel that works is the one that controls the speed of the fan. When I turn the fan on it will only blow cold air out of the defrost vent. I can turn the knobs all I want but that is all I will get.

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  • Jesse Eggman
    Jesse Eggman Oct 14, 2013

    This is a 2001 v6 Dodge Dakota SLT

  • Jesse Eggman
    Jesse Eggman Oct 14, 2013

    It is electric not vaccum

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  • Dodge Master
  • 635 Answers

Check your vacuum lines going into the car from the engine compartment dodge have really bad issues with this, could also be vacuum control valve behind dash on evap box.

Posted on Oct 14, 2013

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Posted on Jan 02, 2017

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roniecon
  • 6826 Answers

SOURCE: my ac only blows cold air out the driver side

If the freon is low this can happen,also,there still will be a door actuator motor that controls the vents,it is in the dash,and the dash would have to be removed to replace it.If this was helpful,please rate,thank you.

Posted on Jun 12, 2010

  • 12 Answers

SOURCE: The ac on my 1998 ford ranger only blows out the defrost vent and floor vent. How do I fix it?

Almost sounds like the actuators are inop. depending on which style you have, some are electrical motors and some are vacuum. These control the mode doors which move to deflect air to various vents.

Posted on Jul 03, 2012

nampaboat
  • 150 Answers

SOURCE: i have a 97 chevy

Your vehicle uses electronically controlled blend doors to direct th air flow from defrost to vent and to the floor . If the door motor is bad then it will stay at a fixed position so you will not get the air to flow out the defrost ducts. There are at least two of these one for air blend and one for fresh air. They are located on the passenger side usually under the plastic cover and have a wire harness that plug in and are usually shaped like a piece of pie.

Posted on Mar 03, 2011

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My windows are not defrosting properly.


Do you have heat? Does the fan turn on? are you getting air from the defroster vents close to the windshield? If you have heat make sure the defrost control is working. I'd open the outside air vent and turn the blower on high speed. If there is no heat, the heater control valve is not working. Double check the radiator fluid tank, make sure you have enough fluid (antifreeze) Low fluid levels can reduce the hot water flow to the heater coil inside the car. If there
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I have a '05 Silverado 4wd 4.8L heater problem


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I have a 93 Saab and my vents aren't blowing heat. When I hit a bump in the road it may kick my heat on full blast for a couple of minutes, but as soon as I hit another bump, the heat kicks off. Also, the...


You don't say whether the fan starts and shuts off with the bumps, or the heat goes cold but the fan stays on. If it's the fan shutting off and coming back, you most likely have an intermittent connection to the blower motor somewhere at the fuse box, the fan speed control switch or the fan motor, or a loose ground connection at the fan motor. The fan motor is visible under the right side speaker grille on the dash. Make sure you re-connect the short black corrugated hose to the grill vent or you won't have defrosting on that side!

The air distribution rotary switch controls where the air goes. The fan speed switch controls exactly that: fan speed. the temp rotary switch controls the coolant temp into the heater core. You need to clarify what you mean by "Also, the dash controls for the vents won't allow me to turn up the power"

You might also have one or more of the following issues:
  1. is you vacuum tank properly connected and are there no leaks in the vacuum piping? The tank is in the driver side rear wheel well below the trunk deck on a convertible, and in the passenger side front fender area on the other cars. It's a white bottle with one or two hoses connected to it. If not properly on, your vacuum operated heater flaps won't move. Does the air distribution knob make sucking or hissing noises when you set it to different positions? If not, check the tank connections, look for vacuum line leaks, then suspect the vacuum valve behind the distribution knob.
  2. if the air distribution rotary switch makes noises when you change its setting, but nothing happens, then suspect the vacuum solenoids that open and close the heater flaps - could be a loose vacuum line or a defective vacuum solenoid
  3. the shaft connecting the temp control knob to the heater valve behind it may not be properly in place. This can be inspected, and adjusted if necessary, from the left side speaker/vent cutout on top of the dash. Make sure you re-connect the black flex hose to the air vent tube, or you'll get no defrosting afterwards!
  4. remember, the centre vents always blow cold air; a brilliant idea from Saab so the driver (and passenger) can get fresh air in the face and stay awake while the rest of the driver, passenger and car is toasty!

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There is a vacuum leak under the hood. Find the vacuum line on the passenger side where it comes through the firewall and follow it to the engine. You system needs vacuum to operate and without it the default setting is on defrost for safety reasons.

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