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heat blows on driver side but cold on passenger side

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Old Jul 12, 2018 | 06:18 AM
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Dan Newberry's Avatar
Dan Newberry
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From: Virginia
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I have a 2008 ram 2500 diesel. The A/C blows cold, but when I turn on the heat, it only blows heat on the drivers side dash vents but the passenger blows cold. I do not have dual climate control. Also when I put it on defrost, it only blows cold, will not blow hot air. Anyone have this issue and point me in the right direction?
2008 ram 2500 6.7L Cummins. when I turn the heat on, I only get heat on drivers side vents put it blows cold on the passenger side. Also when I put it on defrost, it only blows cold. I have read some posts that people have flushed the heater core and that fixed their problem, but it was reversed for them, cold on driver, heat on passenger. Has anyone had this issue or can point me in the right direction?
 

Last edited by jkeaton; Jul 23, 2018 at 11:59 AM.
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Old Jul 13, 2018 | 02:48 AM
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jfotsch
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Originally Posted by Dan Newberry
I have a 2008 ram 2500 diesel. The A/C blows cold, but when I turn on the heat, it only blows heat on the drivers side dash vents but the passenger blows cold. I do not have dual climate control. Also when I put it on defrost, it only blows cold, will not blow hot air. Anyone have this issue and point me in the right direction?
I have an 04 which had the blend door issue. Not sure if they corrected the problem by the time your truck was built or if that is your problem?
 
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