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Dodge Sprinter Heat/Air Conditioning Questions

19 messages,  Last post on Apr 23, 2008 at 10:51 AM

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What is this discussion about? Dodge Sprinter Cargo, Heating / Cooling, Van

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#14 of 19 Re: Sprinter Roof-top A/C [foxm30] by kenbaker Aug 29, 2007 (11:37 am)
Replying to: foxm30 (Aug 28, 2007 2:43 pm) From front vents?   Under high humidity, I have actually had moisture spit out of the top of dash vents (above/either side of, the radio), and those vents were also wet with drops of condensed moisture.   The van was full of noisy teenagers (as it usually is) and I did not hear any misty-moisty noises... but I could imagine there could be some since I got Spritzed at least once, leading me to touch the wet vent in the dark. After touching the problem spot, I could see the leetle round droplettes in the moonlight or streetlight.   KenB
#15 of 19 fresh air vents, hot air by jmdeegan Nov 14, 2007 (4:21 pm)
I have a 2004 Dodge Sprinter 2500 used in the home delivery business. When it is cool outside I open the vents for cool fresh air and without warning and not touching the temperature control knob the air becomes hot. It may stay warm or go back to cool. This happens with no time frame being the same. Help, I am trying to get this fixed without going to the dealer. This also plays havoc when the a/c is running. Replies to this message: kenbaker (Nov 15, 2007 10:48 am) jmdeegan (Nov 18, 2007 9:18 am) jmdeegan (Dec 13, 2007 6:07 pm)
#16 of 19 Re: fresh air vents, hot air [jmdeegan] by kenbaker Nov 15, 2007 (10:48 am)
Replying to: jmdeegan (Nov 14, 2007 4:21 pm) jmdeegan, is your temp control all the way on the cold stop?   If not, the warm temp will come on regardless of air temp (air flow that is) if the engine is warmed up. A sensor, not sure where, will try to get the temp to a sliding-scale temp.   Cold stop is only cooling, just off the stop appears to still give very little heat except at COLD temps (but with the engine temp up). Just beyond the cold stop, some heat is added until the sensor (wherever it is) gets up to about 62F.   As you run the temp know up the scale, the air flow will be more and more warm, for a longer and longer time until that elusive sensor is up to the temp for that spot on the dial... It is not the (flowing) air temp that is affectively controlled by the knob as you are used to in most American cars, but rather the temp of the sensor. Until warmth gets to the sensor, the heat will remain flowing unless you have the knob on the Cold stop.   If you are on the COLD stop and you get heat, then the control may be bad... I see them for sale on EBAY once in a while, usually the entire air control cluster.   Write back if you have more diagnostic info after reading the listing above.   KenB Replies to this message: jmdeegan (Nov 18, 2007 9:18 am) jmdeegan (Dec 13, 2007 6:07 pm)
#17 of 19 Re: fresh air vents, hot air [kenbaker] by jmdeegan Nov 18, 2007 (9:18 am)
Replying to: kenbaker (Nov 15, 2007 10:48 am) Thanks for the info. I will try to find out where the sensor is located and how to replace the sensor. Yes, the control knob is set on cold stop. Also will try ebay on the control panel. The panel is not cheap, I had to replace it once because the centrer knob broke. It seems like it could be the sensor because it happens when the a/c is also running.
#18 of 19 Re: fresh air vents, hot air [kenbaker] by jmdeegan Dec 13, 2007 (6:07 pm)
Replying to: kenbaker (Nov 15, 2007 10:48 am) I took the truck to the dealer and put it on the computer. They could bypass the heat control knob on the dash control unit and the temperature would work great. I was told there is a electrical part behind the temperature control knob that went bad. Of course the small bad part can not be replaced. Replace the whole control unit in the dash and everything works great but what an expense.
#19 of 19 2003 sprinter passenger used 117k miles by santoman Apr 23, 2008 (10:51 am)
i live in texas and was wondering will a 03 with rear air cool good enough in the hot summer??--i would like it to cool around 55 when loaded with people   thanks dave

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