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Dodge Ram Climate Control

315 messages,  Last post on Dec 02, 2009 at 8:03 AM

You are in the Dodge Ram Forum. Your Host is kcram

What is this discussion about? Dodge Ram Pickup 1500, Dodge Ram Pickup 3500, Dodge Ram Pickup 1500 SRT-10, Dodge Ram Pickup 2500, Heating / Cooling, Truck


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#278 of 315
Re: Climate Control Woes [corkscrew] by dcm900
Aug 04, 2009 (4:44 pm)
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Replying to: corkscrew (Aug 04, 2009 1:22 pm)

I did a visual and physically turned the doors with the motors off. There all good.
#279 of 315
Re: Climate Control Woes [dcm900] by corkscrew
Aug 04, 2009 (8:14 pm)
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Replying to: dcm900 (Aug 04, 2009 4:44 pm)

If the tabs on the plastic limit pins are okay, disconnect the battery for 15 minutes and then reconnect the battery cables. This procedure may allow the pcm to relearn where to stop the doors.
  If the motor is good and the blend doors work properly and are not broken there is a reason the computer can't find a stop point and it goes into limp mode. Most problems occur due to problems with the limit pins or the doors. Check the switch just to rule it in or out.
#280 of 315
Re: Climate Control Woes [corkscrew] by corkscrew
Aug 05, 2009 (4:22 am)
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Replying to: corkscrew (Aug 04, 2009 8:14 pm)

Motor Failure: These motors are actually robust.They turn in one direction when power is supplied,and reverse direction when power is swiched.They hold a steady position when both wires are positive or negative The computer will drive the motor to a stall point in both directions, then it can count motor revolutions and stop the motor anywhere in between.If this does not happen then the computer shuts the motor down
#281 of 315
Re: Climate Control Woes [corkscrew] by dcm900
Aug 05, 2009 (6:16 am)
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Replying to: corkscrew (Aug 05, 2009 4:22 am)

I tried disconnecting the battery all night, it didn't drive the motors. I powered up the motors whith my drill battery and some wires. I checked the gears in the drive mechanism..... I didn't think it could it be the switch, because recirulation turns on and off fine, it's on the same switch. Should I try a switch?
#282 of 315
Re: Climate Control Woes [dcm900] by corkscrew
Aug 05, 2009 (2:32 pm)
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Replying to: dcm900 (Aug 05, 2009 6:16 am)

Check the limit pins, make sure the tab is not broken, also make sure the doors are not damaged. You may be able to get Auto Zone or Pep Boys to check for codes as the computer will not activate the motor if it doesn't recognize it's stop point and a code will be set..I would have someone check the switch before buying a new one.
#283 of 315
Re: Climate Control Woes [corkscrew] by dcm900
Aug 07, 2009 (7:05 pm)
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Replying to: corkscrew (Aug 05, 2009 2:32 pm)

Got the Dodge dealer to check the system with their DRB3. Everything checked out ok in terms with the flappers. they said to replace the switch unit. I replaced the switch unit, now defrost is floor and it's all F#&%d up. everything works, only when I go to defrost the floor vent comes on and the A/C compressor kicks on. When I go to Floor Defrost goes on. Does it need some sort of assigning?
#284 of 315
Re: Climate Control Woes [dcm900] by corkscrew
Aug 08, 2009 (6:03 am)
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Replying to: dcm900 (Aug 07, 2009 7:05 pm)

If they installed the right switch and connected it correctly, it may take up to 20 starts for the system to relearn itself.
#285 of 315
Re: Climate Control Woes [corkscrew] by dcm900
Aug 08, 2009 (2:34 pm)
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Replying to: corkscrew (Aug 08, 2009 6:03 am)

I installed it...
#286 of 315
Blower air by rockstar8
Aug 06, 2009 (7:42 pm)
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So my A/C is I ce cold.Problem is the vents are not blowing air like it should.It's almost like there is something blocking the vents. It sounds like it blowin like hell but its not. I notice sometimes leaves and debree will come thru the vents when I first turn on the the air.Any sugestions??
#287 of 315
blower shuts off 02 Ram by jhsmith6185
Aug 10, 2009 (5:43 am)
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While running the AC, the blower will just shut off. I know it's not a blower issue because, when the AC is shut off the lights on the buttons stay on as if it was not shut off. Any clues ???
 
Jim

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