Question about 2003 Chrysler PT Cruiser

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2003 chrysler pt cruiser defroster cotrol not working

Control knob springs right back and fan only blows from the dash vents

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  • 256 Answers

Switch could be the problem,

Posted on Dec 05, 2012

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Posted on Jan 02, 2017

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  • 147 Answers

SOURCE: my 2003 pt airflow control knob does not shift air to pannel

something might be stuck in the ducting not allowing the door to move and direct air flow to the other ducts. First pull straight on the nob and pull it off of the dash. then take a pair of pliers and make sure the smell metal peg will rotate.

Posted on Aug 15, 2009

  • 10 Answers

SOURCE: my 98 concorde wont blow heat on defrost, only on the vents

haha

Posted on Feb 14, 2010

  • 4 Answers

SOURCE: 2001 pt cruiser no heat

did you check the fluid level by removing the rad. cap? Radiator should be full to top. If Chryslers are low on coolant, the heater will not blow warm air.

Posted on Jan 04, 2009

csmock132
  • 4669 Answers

SOURCE: My 2001 Sebring blows hot air except when I turn

If the fan runs in the defrost position then the fan is fine. It sounds like a control head problem or computer problem. Did you tell them it worked on Defrost. The A/C is suppose to run when you select defrost to defog windows in the winter.

Posted on Jul 27, 2010

hotrodshop
  • 106 Answers

SOURCE: looking for relaybox on chrysler pt cruiser(location pictuer)

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Posted on Jun 09, 2009

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2005 Ford Focus. Air is blowing out of the floor vents and defrost vents but not dash vents. Also the knob will not go onto the dash vent option it's like it just springs back up.


A failure has occurred in the HVAC system, legally, when a fault happens the hvac system will default to defrost/floor. Further diagnostics will be needed to determine issue.

Jun 05, 2015 | 2005 Ford Focus

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Ac air does not come out on the dash boared vent but blows on windshield. what is the problem?


there will be a air flow setting knob that controls whether air is defrost or on feet or from the console vents.

Feb 07, 2015 | 2001 Lexus RX 300

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Diverter knob


have you been messing around in the dash at all? usally this happens when a vacume line in the dash to the vent control system gets disconnected typically its behind the radio and happens during aftermarket headunit installations

Jan 27, 2014 | Dodge Dakota Cars & Trucks

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Air will only come out defrost vents


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.

Oct 14, 2013 | Dodge Dakota Cars & Trucks

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94 buick park ave driver vents blow cold. passenger blows heat


try this pull your ac heat control box out and unplug it leave unplugged for 2 minutes then plug back in this will reset the computer sounds like the computer is malfunctioning and this should take around 30 minutes to do and fix the problem it twhere you turn knobs to control heat ac fan speed and vent/defrost/settings hope this helps

Sep 24, 2010 | 1994 Buick Park Avenue

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My ac only blows cold air out the driver side vents the other vents just blow air. there is no loose duck work and i dont have digital controls only one knob that works the fan speed


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.

Jun 12, 2010 | 2005 Jeep Grand Cherokee

1 Answer

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!

Oct 26, 2009 | 1993 Saab 900

2 Answers

A/C will suddenly send out heat. Fiddling with knobs seems to help. What's wrong?


You have a broken wire connection between the temperature control knob and the circuit board behind the center dash console. Vibration causes the failure and once the control knob gets loose the solder connection fails.

For someone that knows how to remove the dash unit and can re-solder a couple of new wires this fix should take no more than 1 hour. Make sure that you apply loctite to the heat control knob spindle nut when you re-assemble it.

The dealer quoted me 750 dollars to fix this issue and I found out that it's a common failure for this year. I fixed mine virtually for free but it took some tools and about an hour of my time.

Jun 02, 2009 | 2005 Toyota Highlander

1 Answer

No air flow through the rear vents with ac or heat on high


make sure the control knob on the dash is on "RR". This lets the driver control all the vents in the back. The heat only comes out of the floor vents, if you have the knob on the blue dots that represents the air conditioning in which the cool air will come out of the vents up above in the back. There is also an area on the control knob on the dash where you can turn the knob to shut the heat and air conditioning off. If the knob is in this position then you can control everything with the knob up above the seat right behind the driver's seat.

Jan 15, 2009 | 2004 Honda Odyssey

1 Answer

1992 240 Gl, Windshield air vent/defroster has almost no output


wow...here it is spring and no one answered either of you? Is there a large volume of air when fan is on high? Where is it going? Or do you not hear anything from the fan? The 240 has an awesome heater. On high it would heat a small home! If no sound, your blower motor is dead assuming the fuse is good. If you hear the fan blowing, figure out where the air IS going. Note that the only way to turn the dash vents off is with the white Oreo dials. To defrost, only that button should be pressed in and dash vents off. Behind the dash switches there is a maze of short vacuum hoses. Often times, people monkey w/ these and reconnect them incorrectly. Haynes manual or Chilton's have proper diagrams. It could be that the vacuum hose coming from the manifold and entering the firewall is split on the under side and not visible, also.

Sep 23, 2008 | 1988 Volvo 240

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