Question about 2008 Dodge Ram Pickup 1500

1 Answer

I ahve a 2003 dodge ram 1500 , i have flushed cooling system and heat still blows cold. when i shut fan off for a few minutes and turn back on, it blows hot for a second then back to cold. i looked on both heater hoses and found no kind of valve, could it be under dash? i used peak flush kit and cleaner flush solution and no change

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  • 5 more comments 
  • Thomas Perkins
    Thomas Perkins Jan 01, 2013

    http://www.youtube.com/watch?v=KAclL84Qq...

  • b1llj69
    b1llj69 Jan 01, 2013

    thanks tom

  • Thomas Perkins
    Thomas Perkins Jan 01, 2013

    Go Patriots,my team too.

  • b1llj69
    b1llj69 Jan 01, 2013

    very cool

  • b1llj69
    b1llj69 Jan 21, 2013

    FYI, i have gone ahead and flushed heater core, installed female garden hose bib on supply and return and ran water thru return to reverse flow and got a load of rust chunks out, then just went back and forth until water was clear in both directions

  • b1llj69
    b1llj69 Jan 21, 2013

    heat supply temp went from 65 degrees to 140 degrees. awesome heat

  • Thomas Perkins
    Thomas Perkins Jan 21, 2013

    Your a Champ,great job.

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  • Dodge Master
  • 14,333 Answers

Could be your thermostat is staying open and not letting your coolant to heat up,usually this is the first thing to check,also your blend door could not be opening all the way.Here's how to replace thermostat.Here's the blend door.

Posted on Jan 01, 2013

  • 2 more comments 
  • b1llj69
    b1llj69 Jan 01, 2013

    both heater hoses are hot, i can hear the air volume change as i adjust temp setting on controls

  • Thomas Perkins
    Thomas Perkins Jan 01, 2013

    Is air coming out of vents on high like it's suppose to?

  • Thomas Perkins
    Thomas Perkins Jan 01, 2013

    Wow,I JUST REMEMBERED,THESE VEHICLES HAVE A PROBLEM WITH BLEND DOOR NOT OPENING,WILL FIND VIDEO AND SEND YOU.

  • b1llj69
    b1llj69 Jan 01, 2013

    air comes out normal, good pressure...but it does seem like its gonna end up being blend door, theres nothing else that i can see

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Posted on Jan 02, 2017

dennymulford
  • 1055 Answers

SOURCE: heater doesnt get hot

is their a control valve in the heaater hose?
if so it could be stuck

Posted on Mar 04, 2009

  • 7353 Answers

SOURCE: 2002 dodge 1500 Changed radiator, thermostat, and hoses. No heat

Why was radiator replaced?Did it have heat before ? If it was plugged, the heater core may also be plugged. Try flushing it with a water hose in both directions. I dont know why the botton radiator hose would be cold, the radiator should be a uniform temp and the air coming through the radiator should be HOT, when the engine is at operating temp. What condition was the old coolant? if it was rusty, the water pump may have lower flow than normal.

Posted on Nov 19, 2009

roniecon
  • 6826 Answers

SOURCE: 2003 DODGE RAM 1500 HEAT BLOWS DEFROST OR DASK

there is a directional door actuator motor,that has gone bad.

Posted on Nov 20, 2009

j_del
  • 1586 Answers

SOURCE: BOTTOM RAD HOSE COLD TOP HOT. ENGINE TEMP ABOUT

Did you burp the air out of the system after changing those parts? It sounds like the thermostat isn't opening which is why the lower hose is still cold. Click my screenname, go to my tips and tricks, and choose the one about burping the cooling system - it may help you out.

Posted on Jan 28, 2010

  • 52 Answers

SOURCE: my 97 dodge ram 1500 4x4 5.2 l i had the heater

could be air in the system or the thermostat could be in up sidedown .

Posted on Feb 09, 2010

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there is a directional door actuator motor,that has gone bad.

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