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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

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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

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1 Answer

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


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.

Dec 12, 2016 | Cars & Trucks

1 Answer

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

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

1 Answer

When the heater is on it's blowing hot then min later blowing cold.have changed everything but heater coil, what could it be that makes it not heat


try back flushing your heater core locate the 2 hoses that go into the firewall start your motor and feel for a hot or warm one thats the inlet to the heater core your gonna have to remove both hoses and using your garden hose flush it out through the hose that was not hot.

Dec 09, 2010 | 2000 Buick LeSabre

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

Blowing cold air when idling


temp should rise while idling unless thermostat is stuck open and not letting heat build up

Nov 11, 2009 | 2006 Chevrolet Impala

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

1995 Crown Vic. Heater blowing cold air


they radiator flush has created a blockage in the heater core that creates the heat. you dont want to replace this part because it can get $$$$. i would take it back to the shop and have them try the service again( at no charge) to see if it can remove the block

Jan 02, 2009 | 1997 Mercury Cougar XR7

2 Answers

I have a 2006 honda Element


replace the heater core

Dec 20, 2008 | 2006 Honda Element

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