Question about Cars & Trucks
Since I replaced rad I have no heat.i tried to bleed the air out by leaving the rad cap off it didn't work.can u tell me how to get the air out of the cooling system.
Heater control valve may be stuck shut..look at the heater hoses or check the water pump for weak operation..
Posted on Jan 01, 2014
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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
In my experience with Audis, after any job requiring changing/draining the coolant the car ideally needs to be driven. With the coolant topped up to max drive the car, keep the revs up and shake the car with steering and over bumps where possible. Whatever you do make sure you take at least 2 litres of water/coolant with you, as as soon as the air lock goes, the level drops a lot and quickly. Also keep an eye on the temp gauge and avoid letting it go much over 90 degrees (over 90 on the gauge usually means its well into the hundreds) When you get consistant hot air through the heater, at idle, the level should of settled. If this doesnt work you may have thermostat issues or a blockage. Good luck, let me know how you get on.
Posted on Mar 26, 2009
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