heat blows cooler on drivers side - DODGE RAM FORUM - Ram Forums & Owners Club! - Ram Truck Forum
DODGE RAM FORUM - Ram Forums & Owners Club! - Ram Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums & Owners Club! - Ram Truck Forum > Dodge Ram Forum - Help Zone - Dodge Ram Problems, & Solutions - Maintenance & Repair > 4TH Generation Dodge Ram 2009+ Dodge Ram Trucks > Heating & Cooling


Notices

Heating & Cooling 4th Gen Dodge Ram Heating & Cooling Problems and Questions.


Vendor Highlight! - Check these guys out for great deals on Parts and Accessories!
Reply
 
Thread Tools
  #1  
Old 11-12-2016, 09:21 PM
awhipps awhipps is offline
Dodge Ram Forum Newcomer
 
Join Date: Nov 2016
Location: Nebraska
Posts: 1
Gender: Male
Vehicle: 2010 ram 1500 hemi
Trim Level: slt
Color: white
Engine: 2009-2012 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:10
awhipps is on a distinguished road
Default heat blows cooler on drivers side

2010 Ram 1500 5.7. 150k miles on it. So, the heater blows cooler out of everything on the drivers side, including the floor and defrost. I have replaced the thermostat, flushed the heater core. tried switching the hoses around, no difference. both hoses are HOT as well. At first glance all the actuators under the dash appear to be working. Btw, truck does NOT have dual climate control. Just wondering if anyone has any ideas before I tear the dash out. Thanks
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 11-10-2017, 09:00 PM
LWCO's Avatar
LWCO LWCO is offline
Dodge Ram Forum Newcomer
 
Join Date: Jun 2017
Location: Montana (MT)
Age: 41
Posts: 10
Gender: Male
Vehicle: 2010 Ram 2500HD
Trim Level: SLT
Color: Tan/Gold
Engine: 2010-20?? 345ci (5.7L) Hemi V8 383hp 400lb/ft (2500/3500)
Rep Power: 0
Rep:10
LWCO is on a distinguished road
Default

Not to revive an old thread.....but my ram has this exact same

New heater core, flushed system, new Tstat, HOAT coolant. No leaks. All blend door and actuators working. The dealer I go to is stumped, LOL.

2010 ram 2500hd hemi 5.7L.
__________________
2010 Ram 2500HD SLT Quadcab 5.7L Hemi Longbox 4x4
>>See Mod List for More Details<<

Last edited by LWCO; 11-10-2017 at 09:03 PM.
Reply With Quote
  #3  
Old 11-13-2017, 07:42 AM
Outlander11 Outlander11 is offline
Dodge Ram Forum Newcomer
 
Join Date: Oct 2017
Location: South Bend
Age: 41
Posts: 5
Gender: Male
Vehicle: 2014 Ram 2500
Rep Power: 0
Rep:10
Outlander11 is on a distinguished road
Default

2014 same issue.
Reply With Quote
 
  #4  
Old 11-27-2017, 12:17 PM
amcnulty amcnulty is offline
Dodge Ram Forum Newcomer
 
Join Date: Aug 2017
Location: nnanaimo
Age: 31
Posts: 26
Gender: Male
Vehicle: 2013 ram 1500 sport
Trim Level: Sport
Color: Red
Engine: 2013-20?? 345ci (5.7L) Hemi V8 395hp 410lb/ft
Rep Power: 0
Rep:10
amcnulty is on a distinguished road
Default

Mine to. Winters here and no heat out of driver vents. I always let it run a few mins in morning before work and passenger side of windshield clears much faster than drivers. Iv noticed when i shut truck off and sit inside i can hear all the doors clse and one of them makes more of a rougher sound than the others so im hoping its just a door....
Reply With Quote
  #5  
Old 12-09-2017, 12:19 PM
SawdustJ's Avatar
SawdustJ SawdustJ is offline
Dodge Ram Forum Senior Member
 
Join Date: Jan 2012
Location: Pickering, Ontario, Canada
Age: 49
Posts: 95
Gender: Male
Vehicle: 2010 Dodge Ram 1500 Quad Cab
Trim Level: SLT
Color: White
Rep Power: 0
Rep:33
SawdustJ is on a distinguished road
Default

I was having this issue too - cool on the driver side vents, warm on the passenger side.

I also had a faulty actuator for the defrost blend doors. I replaced the actuator two days ago and now the air temp on both sides seems to be about the same.
__________________
Mods: Extang Tri-fold Soft Tonneau Cover, Bed Liner, Volant CAI, Cabin Air Filter
Reply With Quote
  #6  
Old 01-16-2018, 04:09 PM
bstc00's Avatar
bstc00 bstc00 is offline
Dodge Ram Forum Senior Member
 
Join Date: May 2011
Location: MI
Posts: 1,405
Gender: Male
Vehicle: 2009 Ram 1500
Trim Level: Sport
Color: Inferno Red
Rep Power: 9
Rep:224
bstc00 has a spectacular aura aboutbstc00 has a spectacular aura aboutbstc00 has a spectacular aura about
Default

Im having this issue right now as well on my 09. I have dual zone so i thought it was the left temp actuator. Replaced that and nothing. I have another actuator on its way. I will replace the other one and see if that works
Reply With Quote
  #7  
Old 01-16-2018, 04:14 PM
amcnulty amcnulty is offline
Dodge Ram Forum Newcomer
 
Join Date: Aug 2017
Location: nnanaimo
Age: 31
Posts: 26
Gender: Male
Vehicle: 2013 ram 1500 sport
Trim Level: Sport
Color: Red
Engine: 2013-20?? 345ci (5.7L) Hemi V8 395hp 410lb/ft
Rep Power: 0
Rep:10
amcnulty is on a distinguished road
Default

I found a very small leak under the dash near center. I put some paper towel under 3 weeks ago and since then there's only half dozen drops of coolant on it. Im getting heater core replaced in a couple weeks for just over a grand including flush and ac recharge. Ill get them to check the doors as well.
Reply With Quote
  #8  
Old 01-30-2018, 12:40 AM
SawdustJ's Avatar
SawdustJ SawdustJ is offline
Dodge Ram Forum Senior Member
 
Join Date: Jan 2012
Location: Pickering, Ontario, Canada
Age: 49
Posts: 95
Gender: Male
Vehicle: 2010 Dodge Ram 1500 Quad Cab
Trim Level: SLT
Color: White
Rep Power: 0
Rep:33
SawdustJ is on a distinguished road
Default

If the dash vents are blowing cooler on the driver side than they are on the passenger side, the problem is with the heater core. It is partially blocked or plugged up somehow.

I know this because I just went through it - twice.

You have two options (assuming the core isn't leaking).

1. Try flushing the heater core. To do this you'll have to remove both coolant lines from the heater core at the firewall. You could remove the lines at the waterpump as well, but you'll end losing a good portion of your coolant. If you're going to flush the coolant anyway as part of the job, then this may be the better option. If you know your coolant is good, then pulling the lines at the firewall will minimize coolant loss to maybe a cupful.

With the coolant lines removed, get yourself some surrogate lines to attach to the heater core. You'll only need a couple feet for each. Dump some CLR (or muriatic acid) into the lines and let it sit for a bit, maybe 30 minutes or so. After you've let the CLR do its thing, hook up a garden hose to the OUTFEED line, not the intake line, and give it a good blast of water. Running the water backwards through the heater core should flush out any debris that's lodges in there.

Lastly, hook the coolant lines back up and start up the truck and let it run for a bit. Make sure you burp all the air out of the system before closing up the rad cap.

Note - this is note a guaranteed repair. It may or may not work depending on how plugged up the heater core is. It is, however, a good inexpensive first step to fixing the problem.

Option 2 - Replace the heater core

Okay, this is a pain in the hind end. I'm not going to go through all the steps to doing it, there are a couple good youtube videos out there that'll show you most of the steps. Suffice it to say, if you've never done it before, or are a novice with the tools, plan on a full day to do the job, maybe even a second.


My heater core first failed back in early December. I tried flushing it, but it only helped marginally. I still didn't have good heat. I then decided to replace it. It took me all day Saturday and a little bit into Sunday to finish it. My heat instantly returned.

Now fast forward to about 2 -1/2 weeks ago. Here in the Toronto area we had about three solid days of -25C temps. It turned out my coolant wasn't up to snuff and it froze solid, at least in the heater core. The truck sat for about a day and a half. I went out that Sunday afternoon to run an errand. No heat! None whatsoever. After about 3 hours of the truck running, it finally came back, but with the same problem again - cool on the driver's side and warm (not hot) on the passenger. [email protected]*K!!! I was pissed.

I tried flushing it at first but it didn't work. So last week, I changed the heater core again. Fortunately, this time because I kinda knew what I was doing, it took me a little under three hours start to finish.

After I removed the heater core, I took it into my kitchen and ran hot water through it (both directions). I could feel the temperature change on the upper half of the core (got hotter), but the bottom half of the core stayed cold. And when you look at how the heater core is positioned in the air box assembly, the bottom half of the heater core is the side that feeds the driver side.
__________________
Mods: Extang Tri-fold Soft Tonneau Cover, Bed Liner, Volant CAI, Cabin Air Filter
Reply With Quote
  #9  
Old 01-30-2018, 12:45 AM
amcnulty amcnulty is offline
Dodge Ram Forum Newcomer
 
Join Date: Aug 2017
Location: nnanaimo
Age: 31
Posts: 26
Gender: Male
Vehicle: 2013 ram 1500 sport
Trim Level: Sport
Color: Red
Engine: 2013-20?? 345ci (5.7L) Hemi V8 395hp 410lb/ft
Rep Power: 0
Rep:10
amcnulty is on a distinguished road
Default

I got quoted $1500 for a heater core change. Includes the coolant flush and AC recharge. Maybe ill try myself. Just had water pump replaced and its only a 2013. Had truck less than a year and so far its just problem after problem.
Reply With Quote
  #10  
Old 11-27-2018, 01:08 PM
ajpillz ajpillz is offline
Dodge Ram Forum Newcomer
 
Join Date: Nov 2018
Location: Des Moines IA
Posts: 12
Gender: Male
Vehicle: 2013 Ram
Trim Level: Ext. Cab Express
Color: Black
Engine: 2013-20?? 345ci (5.7L) Hemi V8 395hp 410lb/ft
Rep Power: 0
Rep:10
ajpillz is on a distinguished road
Default

I am getting ready to take this job on as I suspect the core is plugged with sludge. Is there a way to do this job with out getting the AC lines drained? There is no issue with my AC and I would love to avoid paying $200 to have it taken out only to have it filled back up.
Reply With Quote
Sponsored Links
Advertisement
 
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
No heat on Driver side 2002 dodge ram rivanco23 Newbie Checkin! 8 02-10-2014 08:33 AM
Getting heat on only passenger side yankeefan4ever Heating & Cooling 26 02-05-2014 10:54 PM
Heat on one side only mopar02 Electrical 13 07-01-2011 11:22 AM
A/C only works while driving, heat works on one side jbbates Heating & Cooling 1 10-15-2009 11:29 AM
No drivers side heat.. maddawg Heating & Cooling 2 12-02-2008 08:10 PM


Advertisement



All times are GMT -4. The time now is 07:45 AM.


vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright © 2019 VerticalScope Inc. All rights reserved.
Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vB.Sponsors