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1998 dodge 3500- air always comes from floor vents. Very little heat in cab and no heat to windshield defrosters. Flushed heater core and very good water flow. I hate to guess but acts like damper in dash is not going to proper positions. Don't want to tear dash out if unnecessary.

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  • 31 Answers

Check your blower motor.

Posted on Dec 02, 2012

  • Donnie Lefler
    Donnie Lefler Dec 02, 2012

    Blower motor is good. I guess I'm gonna have to remove dash. Tried to snake out vents with a electrical fish tape and foam came out, so probably have **** keeping dampers from opening and closing properly. That was gonna be last resort though.

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SOURCE: Heat and AC vent problem.

most likley you have a vaccume leak somewhere but also the linkage to the door that that directs the air flow may be in a bind. another possability is the hvac controlls. hope this helps

Posted on Jun 08, 2009

  • 9 Answers

SOURCE: no heat coming out of vents

be sure you have no coolant leak and check if you have a blead valve on the engine for the coolant if you do, blead the air out

Posted on Oct 18, 2009

rtjohnson55
  • 75 Answers

SOURCE: No heat,hot water is going in the heater core,good

it is the blend door actuator. lol i just did one today since here in Houston we had a little cold snap and everyone is realizing that their heater isn't working. The blend door actuator is on the bottom of the heater case and has one plug with 4 or 5 wires. It requires a 5.5mm socket to remove 3 screws and just pull down to release it. Hope this helps.

Posted on Dec 06, 2009

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