Heating Problems, Blows hot sometimes - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
 
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post #1 of 7 Old 11-04-2013, 09:25 PM Thread Starter
Rambronco
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Heating Problems, Blows hot sometimes

I have a 06 Power Wagon and having some heating issues. It wasn't really getting very hot inside. It has pas/driver heat controls but they seem to work as they should. Figured it was thermostat, changed that, still same issues. When I go to work in the morning, about a 45 min. drive, never gets very warm at all. When truck sits for awhile, then drive it, it gets hot as it's supposed to. A/C doesn't blow as cold as it should either. Temperature guage is where it is supposed to be and rad hoses get hot. Rad cap seems kinda cold. I put the oem thermostat in. Could it be a air lock? Heater core maybe plugged a bit? Truck has alot of miles, 215k but has no other issues and runs great.

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post #2 of 7 Old 11-04-2013, 10:10 PM
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If all the hoses get hot and the temp comes up where it should be then it is most likely the heater core.

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post #3 of 7 Old 11-04-2013, 10:13 PM
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Sounds like the level is low.

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post #4 of 7 Old 11-05-2013, 08:05 PM Thread Starter
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Fluid level is good. I noticed last night that passenger side was blowing hot, drivers side wasn't always hot. Problem seems to be on drivers side, it has dual heat controls for driver passenger. Can this be a vacuum problem? Passenger side seems to work fine

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post #5 of 7 Old 11-05-2013, 08:11 PM
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Quote:
Originally Posted by Rambronco View Post
Fluid level is good. I noticed last night that passenger side was blowing hot, drivers side wasn't always hot. Problem seems to be on drivers side, it has dual heat controls for driver passenger. Can this be a vacuum problem? Passenger side seems to work fine
Vacuum does not play a role in the system, I've had this problem for a while, took apart my heater box confirmed all my doors were functioning normally and still have had a bit of a issue. However it has improved drastically since I had my timing cover gasket replaced as I was loosing a small amount of coolant through it.

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post #6 of 7 Old 11-05-2013, 10:00 PM
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Need to pressure check your cooling system. No more than 16 psi! But see if there is a leak.

2nd, you need to make absolutely sure the blend doors and/or mode doors in the HVAC box are working properly. I've never experienced this myself (knocks vigorously on wood!) but I seem to recall a few threads here & CumminsForum that mention Ram's and their blend door issues.

Be worth searching for....? :thumbsup:

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post #7 of 7 Old 11-05-2013, 10:12 PM
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Do a search on the Blend Door.

Attached Images
File Type: jpg Ram HVAC Box.jpg (45.0 KB, 6 views)
File Type: jpg Ram HVAC Box - Front.jpg (42.6 KB, 2 views)
File Type: jpg Ram HVAC Explode View.jpg (18.1 KB, 4 views)
File Type: jpg Top half of the Blend Door System.jpg (26.9 KB, 1 views)
File Type: jpg Bottom half of the Blend Door System - Heater core is sandwiched in-between.jpg (34.9 KB, 1 views)
File Type: jpg 2010-07-29_194216_heater.jpg (51.1 KB, 0 views)

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