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2006 uplander new w p heater c thermo and flushed twice heat at frist drive then shut down and come back later and will only blow cold .anyone kno fix

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When you have vehicle at normal operating temperature, touch both hoses that go into firewall. They should be hot, if only one of them if warm, might have a bad actuator.

Posted on Dec 12, 2016

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2006 uplander has new wp heater c thermo and flushed twice has heat for while then you shut down and come back later and only will blow cold anyone know the fix


Make sure you refilled to top antifreeze after you run motor it has to be full and will burp ounce are both sides of the heater hoses hot they have to be if one hose is not ANF the other when motor is full not the core is stoped with gunk/ rust will need take not side loose the take the remaining hose that goes yo heater core that was cold off the block leaving the loosrmef hose in yet hand then take garden hose and force wayrt through the hose backwards the gunk/ rust will whose out the pope through firewall dirt gone if the heater core is clogged completely try squeezing toilet bowl cleaner into the stopped up end otherwise get the core changed

Dec 12, 2016 | Cars & Trucks

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Heatdoesn't work, A/C blows out warm air and defrosts blow out cold air


Right think the problem is the heater core is blocked with corrosion ,now remove the bottom hose from the rad and the heater hoses then flush every which way you can including through the heater core reversing direction then ,refit all the hoses fill with water only and see if heater works if so the remove the bottom hose again and drain ,then add a minium of 3 litres of antifreeze ,its a anti corrosion agent as well as antifreeze and without it the internal of the engine will corrode and the slurry will block the heater first then the radiator ,

Jan 04, 2014 | 2001 Dodge Stratus

1 Answer

2000 dodge stratus. Heater only works at idle, when driving at high speeds, heater blows cold and thermostat gauge goes to cold. Back flushed heater core, new thermostat any ideas?


I'd say you have a faulty thermostat, be it new or not. If your temperature gauge goes to cold as your engine is taking you down the highway, the thermostat is not doing its job. The temperature should never come down to below normal until engine is shut off...

Dec 03, 2013 | 2000 Dodge Stratus

1 Answer

Heat not working in 2006 mdx acura


The whole system is very simple. There is a valve that opens and closes on one of 2 hoses that come from the engine. If the heater core is not getting water, the valve itself is the problem. If they did the flushing properly they should have checked to see if that valve was fully open to allow the flushing process to clean out the heater core too. If there is sloshing in the heater core (check it by listening under the dashboard when heat is turned on) then there is AIR in the core stopping the antifreeze mix from going through its coils. Remove the heater switch on the heater hose and check it for proper action first. Next have a compressed air test of the heater core to see if it is clogged. If you fix this, try to do regular maintenance on your beautiful MDX!

Jan 12, 2013 | 2006 Acura MDX Touring

1 Answer

76 COUPE DE VILLE NO HEAT!!! FLUSHED COOLANT SYSTEM REPLACED ANTI-FREEZE, REPLACED THERMOSTAT TO 195 DEGREES, REPLACED A/C THERMO VACUUM SWITCH, HOWEVER FLUID IS CIRCULATING THRU HEATER CORE. THERMOSTAT IS...


Feel the hoses going to heater core, one should be hot and the other warm. If one is cold or both are then heater core is clogged. Make sure heater control valve works and as vacuum to it and or the cable is free.

Jan 16, 2011 | 1976 Cadillac Deville

3 Answers

2008 Chevy Uplander has 21,000 miles. Nno heat from rear heater at idle. Disconnected hoses and flushed, water flowed good. Reconnected hoses and still no heat. Raised idle to 2000 rpm and got good heat....


Uplanders with the 3.9 engine are prone to no heat at idle speeds. Probably weeping head gasket. Air bubble trapped. Dealers will remove rad cap and let it sit at about 25 deg. angle for a couple hours. Good for awhile.

Nov 15, 2010 | 2008 Chevrolet Uplander

2 Answers

1998 for taurus heater wont blow hot air only cold .was driving down the road I TURNED THE HEATER OFF FOR A COUPLE MINUTES WHEN I TURNED IT BACK ON IT WOULD ONLY BLOW COLD AIR.IT IS ELECTRONIC SWITCH'S.THE...


you need to check the blend door in the heater box it maybe broken or stuck.the blend door switches between the heater core and ac evaporator to provide a mix of temperature

Oct 18, 2009 | 1998 Ford Taurus

1 Answer

Heater only blows cold air untill your at 60 MPH


Sounds like heater core still plugged,and/or has air in system.I have had good luck with back flushing ( rinsing in reverse of normal flow) with a mixture of cascade dish washing detergent and water. This ("new and improved" Dex-cool antifreeze/coolant) sure does gum up and eat certain gaskets. When you have it refilled find a mechanic that has a vacuum operated filler. These are the greatest way to refill with no air pockets. Also could be the temperature blend door being incorrectly opened/shut though I doubt it.Hope this helps and please rate me!!

Jan 18, 2009 | 2002 Ford Taurus

1 Answer

Cooling system problem


try running it to running temp and try to check the heater core hoses. if one is hotter then other may have pluged up heater core.

Jan 01, 2009 | 1995 Pontiac Grand Am

2 Answers

I have a 2006 honda Element


replace the heater core

Dec 20, 2008 | 2006 Honda Element

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