DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Help Zone - Dodge Ram Problems, Complaints, & Solutions - Maintenance & Re > 3RD Generation Dodge Ram 2002 to 2008 Dodge Ram Trucks > Heating & Cooling


Notices

Heating & Cooling 3rd Gen Dodge Ram Heating & Cooling Problems and Questions.


Latest Vendor News
AutoAnything
Addictive Desert Designs!
Bayou Goat Mounts

Reply
 
Thread Tools
  #1  
Old 02-08-2010, 05:13 PM
jvigier's Avatar
jvigier jvigier is offline
Dodge Ram Forum Newcomer
 
Join Date: Feb 2010
Age: 38
Posts: 9
Gender: Male
Vehicle: 2003 Dodge Ram 1500 Quad Cab
Trim Level: SLT
Color: Gray
Engine: 2008-2008 287ci (4.7L) PowerTech V8 310hp 330lb/ft
Rep Power: 0
Rep:40
jvigier is on a distinguished road
Send a message via AIM to jvigier
Default Overheating, no heat in cab, 03 Ram 1500

Hi folks, been working on this for a while now and cannot seem to sort this out.

2003 Ram 1500 4.7 2x4

Started overheating with no heat in cab. Top hose into rad is hot but bottom hose is cold. Changed the stat but no luck there, same symptoms (not to mention the old stat worked just fine in a pot of boiling water).

the radiator drains fine from the stop plug, no leaks anywhere, so obviously not clogged.

I just replaced the heater core last year, as well as the water pump, I would imagine neither are the issue.

Here is the strange thing: when slipped off, both hoses (feed and return) to the heater core had hot liquid in them. Yet no heat in the cab...wth???

ONly thing I can think of at this point is to replace the water pump AGAIN...just looking for some feedback, war stories, shoulder to cry on etc...
Reply With Quote
Sponsored links
  #2  
Old 02-08-2010, 05:38 PM
RamTech's Avatar
RamTech RamTech is offline
Dodge Ram Forum Senior Member!

 
Join Date: Nov 2009
Location: Johnson City, TN
Age: 44
Posts: 12,120
Gender: Male
Vehicle: 2004 Dakota Club Cab 4X4
Trim Level: SXT
Color: Bright Silver
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 14
Rep:1824
RamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant future
Default

The 3.7/4.7 is notorious for trapping air in the cooling system and causing the problem you're describing. Try this - remove the bleeder plug on the water outlet for the upper hose and the radiator cap. Pinch off the upper hose with a pair of vise grips or something similar. Put a small funnel in the bleeder hole and fill with coolant until the system is full and then remove the pinch off and reinstall the plug. Finish topping off the system at the radiator, start it up and see what happens. This method isn't 100% guaranteed but it works most of the time. If you still have air trapped in the system you'll need to find someone with a vacuum venturi tool that can pull the air out of the system. One more thing, are you sure the poppet valve in the stat is pointing up?
Reply With Quote
  #3  
Old 02-08-2010, 05:59 PM
bones64's Avatar
bones64 bones64 is offline
Dodge Ram Forum Senior Member!

 
Join Date: Aug 2009
Location: Belleville,Ontario, Canada
Age: 49
Posts: 6,640
Gender: Male
Vehicle: 2003 ram 2wheel drive
Trim Level: slt/sport (bones)
Color: black
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 10
Rep:659
bones64 is a splendid one to beholdbones64 is a splendid one to beholdbones64 is a splendid one to beholdbones64 is a splendid one to beholdbones64 is a splendid one to beholdbones64 is a splendid one to behold
Default

Good pint Rem. I have done that before regarding the thermostat. What a piss off to find out that was the culprit after alot of angish.
__________________
Edd's : Hemi/ K&N C.A.I BONES Edition / Roll pan/Hood scoop/ Tinted heads,tails,3rd brake/ stereo upgrade/ T.M.D front bumper cover /Painted interior, 5" rear flip.2 inch front drop coils, Painted calipers,Eye brows
Reply With Quote
  #4  
Old 02-08-2010, 07:29 PM
jvigier's Avatar
jvigier jvigier is offline
Dodge Ram Forum Newcomer
 
Join Date: Feb 2010
Age: 38
Posts: 9
Gender: Male
Vehicle: 2003 Dodge Ram 1500 Quad Cab
Trim Level: SLT
Color: Gray
Engine: 2008-2008 287ci (4.7L) PowerTech V8 310hp 330lb/ft
Rep Power: 0
Rep:40
jvigier is on a distinguished road
Send a message via AIM to jvigier
Default

Thanks guys, I will definitely try the funnel/bleeder combo Rem suggested!

I will check again on the stat but pretty sure I did that correctly.

I have had to replace MAF, Rad, a/c comp, altntr, both front hubs...too many things to list...here's the thing: weekend before Christmas, with 2 feet of snow in virginia, "tank" got us through even though we were towing a fully loaded trailer...even when the snow plows were getting stuck...so I guess I have to keep him around.
Reply With Quote
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


Advertisement






All times are GMT -4. The time now is 04:57 AM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum