View Single Post
  #4  
Old 01-18-2011, 10:13 AM
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

A stuck open stat would set a rationality code in the PCM and the operating temp would stay low, so that's not my first guess but it's still possible. Start by making sure the coolant level is correct and that the strength is correct for the temps in your area. You'd be surprised how many half frozen systems I've encountered. Both heater hoses should be hot (about the same as the radiator hoses) and if you have an infared temp gun, you can check them that way. The difference between inlet and outlet hoses should be about 15-20 degrees. If that's ok, it's time to start thinking heater core obstruction or perhaps a blend door problem. A faulty water pump could also be causing decreased flow to the core.
Reply With Quote