Question about Volkswagen Polo
Vw polo 1600 overheats top hose hot bottom hose cold changed thermostat changed rafdiator
A cold hose indicates an air lock in the cooling system, if this is the case have it bled to remove the air lock. it could also be combustion gases leaking into your cooling system indicating a possible head gasket failure, your anti freeze can be tested for traces of combustion gases.
Posted on Nov 28, 2013
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Posted on Jan 02, 2017
turn your heater on to max heat and high fan. then see if you can feel the hoses on the firewall for heat they should be hot. make sure that the fan unit on the radiatoris working if the upper radiator hose is hot the fans should be running if they are not that means that either the relay is bad the thermo sensor is bad or the fan unit is shot... please rate the solution..........thanks
Posted on Sep 24, 2008
SOURCE: Audi A4 95 2.6 Abc engine
To be honest, I don't have any experience with the 2.6, but from the sounds of it, you have coolant flow through the upper hose (which would explain why it's hot) and none through the lower hose (which is why it's cold). One resource you could check is www.vagcat.com - sign up (free) for your car and drivetrain, and it should show you everything you need.
Posted on Sep 14, 2008
take the thermostat out and heat it up in a pan of water to see if it will open when it gets hot.
you should see it open when it gets hot.use a cooking thermometer to watch the temp. it should open between 180 and 225 deg.
Posted on Aug 04, 2009
Why was radiator replaced?Did it have heat before ? If it was plugged, the heater core may also be plugged. Try flushing it with a water hose in both directions. I dont know why the botton radiator hose would be cold, the radiator should be a uniform temp and the air coming through the radiator should be HOT, when the engine is at operating temp. What condition was the old coolant? if it was rusty, the water pump may have lower flow than normal.
Posted on Nov 19, 2009
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