Question about 2005 Pontiac Grand Prix

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My heat is not getting hot. The blower is blowing, but the air coming out barely gets warm

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Change your thermostat... its probably stuck open not allowing it to get hot. its a fairly simple and inexpensive fix. Good Luck

Posted on Oct 10, 2010

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Posted on Jan 02, 2017

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My 2000 Isuzu Trooper heater is on the highest setting but I can barely feel the warm air because it's not even hot air coming out of the vents. What could be wrong?


If the fan is blowing on high speed and the airflow is not hot check for a low coolant level first. If coolant level is good, check heater hoses under hood for temperature. If one is hot and the other is warm/cold suspect a plugged heater core. If both hoses hot, check for improper blend door operation on heater box

Jan 21, 2016 | Isuzu Cars & Trucks

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My 2004 Mercury Mountaineer V8 has warm air coming out, but not hot. I replaced the thermostate last night. It is blowing just not hot.


the air from the blower will be the same temperature as the coolant temperature. If you want it hotter you may have to get a thermostat that opens at a higher temperature or close the air circulation vent so that only cabin air is heated.and not fresh freezing cold air from outside.

Jan 15, 2015 | 2004 Mercury Mountaineer

1 Answer

Heat delayed


heat not blowing or not getting hot? if it's not blowing it may be the blower motor going out but if its just taking a while to get hot it could be the duct exchanger which could be a vaccume leak or you could be low on engine coolant, if the engine coolant is low the heater core doesn't get enough coolant to warm the air that passes thru it.

Nov 08, 2013 | 2007 Nissan Altima 2.5

1 Answer

Heater doesnt work


To troubleshoot this types of problem,click the link below :---
Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows intermittently and temp gauge goes erratic?

http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

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Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem?

http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html

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This will help.Thanks.

Mar 27, 2012 | 1994 Volvo 960

1 Answer

I have a 2000 pontiac grand prix with a digital climate control system. The heat quit working, it doesn't blow out any heat. Now that it is warm outside the air stopped blowing out any air. The digital...


I have a 2000 pontiac grand prix with a digital climate control system. The heat quit working, it doesn't blow out any heat. Now that it is warm outside the air stopped blowing out any air. The digital temperature on the climate control is not correct. When it states that it is below 30 degrees on the ext and it is warm outside the air wont be cold. Once it starts going above 30 degrees the air gets colder. Today the blower stop working all together. Was told it maybe the climate control unit was bad. You can hear the door opening/shutting when you switch the temp from cold to hot. But there was no heat blowing out whatsoever in the winter time. Could you please give me your opinion on whether or not it is the climate control unit or something else?

Jul 11, 2011 | 2000 Pontiac Grand Prix

1 Answer

Heating system do not work. It started a couple of weeks ago. When set at 70, it produced no warm air. cold air would come from the vent/duct. when increasted to about 76, it would produce heat. Now it do...


I have the exact same problem. Started occasionally blowing cold air. Now I can't get the hot air to come through. Could it be a flapper door that open and closes depending on the tempurature setting?

Jan 04, 2011 | 2006 Lincoln Mark LT

1 Answer

1996 Honda Passport EX 3.0 Heater runs weak, the fan barely puts any air out, but I can hear it blowing. It also barely puts out warm air. With the temp. lever in cool it really blows. but as I slide it...


Is this a quantity of air problem or quality of the heat from the heater?
If its heat from the heater you need to first flysh and reverse flush your cooling system, includes radiator etc and use a good flushing agent first. Then replace heater water valve.
Refill and bleed out cooling system and get car up to temp.
When hot, feel pipes going into and out of heater matrix. On full heat they should both be roughly same temp, if not , replace matrix cos it must have collapsed.
Have yoy EML light checked at local garage using spec diagnostic tools.
Roger

Apr 24, 2017 | 1996 Honda Passport

1 Answer

96 Jeep Grand Cherokee will not blow out hot air


It's possible you are not getting enough coolant flow to your heater core. Try pulling the hoses off the core, blowing it out with air compressor, fill with water and blow out again. Try this about five times and see what happens. Alot of times these cores will plug up or have restricted flow. They will blow warm at low speed but it won't flow enough hot coolant through to stay hot on high blower speed.

Feb 09, 2009 | 1997 Jeep Grand Cherokee

1 Answer

Heater doesn't work


does the blower still work?? Are you waiting long enough for the engine to warm up?? your heat comes from the engine heat. hot coolant (antifreeze) flows through the heater core (like a smaller radiator) behind the dashboard. the blower pulls air through the hot heater core, making the air hot.
If it blows air, but never gets warm, you should first check your coolant. if you drive your car without it, you will have big, expensive engine problems. If there is no coolant or very low coolant, you need to check for leaks after you refill it. (make sure you get the right kind of antifreeze. autozone can help)
most cars that new dont have radiator caps. Instead there is a seperate coolant tank under the hood. fill it to the full mark, let the car run and watch it. It will **** down the coolant from that tank untill the radiator is full.
If you have plenty of coolant, you may need a new thermostat. sometimes they get stuck. some stick open, some stick shut. It is usually easy to change one and they are cheap. I can't help you much with that cuz its different on every car. on my car, I have to crawl under it to get to the thermostat. hope this helps.

Jan 14, 2009 | 2002 Nissan Altima

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