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Heater on pontiac minivan not blowing hot air. What to check

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  • Master
  • 575 Answers

First thing to check is your radiator for antifreeze. Make sure the radiator is cold before you open up the cap! You can also check it by looking at the overflow tank. If it is full, start the car and wait until it the temperature gauge is warm enough to turn on the heater. Turn off the engine and carefully touch the top hose and bottom hose of the radiator to see if they are warm. If not, your antifreeze is not circulating. The thermostat is stuck closed. You will need to replace it

Posted on Dec 13, 2016

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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dgjtex
  • 405 Answers

SOURCE: 2004 Pontiac Montana blows cold air in defrost

There is a mix damper inside your duct that controls the heat over heater core and ac evaporator that to your floor and one to your defrost. it is probable an electric actuator, that is not functioning properly. If yu can locate it and manually move it, you might have to remove the actuator motor first, you should be able to figure out your problem, I hope this helps! merry Christmas!

Posted on Dec 22, 2008

  • 217 Answers

SOURCE: '98 S-10 heater blowing cold air - not hot air

will the air flow switch from floor to the mid to defrost? if so then we have a problem with the tempature door actuator. easy to replace just in tight place. Keep me posted for more help or if this was any help thanks

Posted on Jan 31, 2009

  • 401 Answers

SOURCE: 2006 Pontiac Torrent heater blowing cold air

hi
check the heater hoses and if both are hot then the mode door is broken
i have replaced 2 in the torrents(not a nice job)

Posted on Jun 21, 2009

  • 2 Answers

SOURCE: 2000 hyundai elantra heater/air conditioner won't stop blowing ho

go into your car.... under the steering wheel next to the gas pedel theres a little lever .... flick the switch ... it should be a white lever .... if its not then the lever came undone and it will be a black and silver switch..... that should probably fix it ... i had the same car with that problem

Posted on Jul 28, 2009

dttech
  • 4803 Answers

SOURCE: Why doesn't the heater blow hot air?

If your "Check Engine" or "Service Engine Soon" light is on, you need to have that checked out first.
If not, the next thing you should check is your engine coolant level. (Antifreeze) If the coolant level is low, the engine coolant does not circulate through the heater core and the the heater doesn't work. The coolant level could be low for a number of reasons including a leaky hose, water pump, or head gasket. In any case, if it is found to be low, you need to find out why.
If the coolant level is OK then the thermostat function needs to be checked to make sure that the engine is reaching operating temperature.
If all of the above checks out OK, then the heater control valve and/or the blend air door in the HVAC housing needs to be checked for proper operation. (NOTE: some cars are not equipped with a heater control valve)

Posted on Oct 10, 2009

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1 Answer

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http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Vehicle_Car_Zone_Cars_Trucks_Vans_Heating_System_Heater_Blowing_Little_No_Hot_Air.htm

Hope this helps!
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