It's probably not getting heated coolant to the radiator. Check the heater control valve and the control on the dasboard.
you need to get a new heater core
This issue could be caused by the thermostat sticking. There could also be an issue with the head gasket seals.
check to see if your thermostat is workin properly.Is there any heat at all after say,a 20 minute drive?
I just had my Daewoo Leganza brake light switch replaced. It goes under the brake pedal. and now my brake lights work fine.
ON a 1999 Daewoo Leganza the thermostat is located on the upper radiatior hose. Unlike most cars this car has a thermostat that is integrated into the housing. You must purchase the housing with the thermostat built in. It is removed by removing the 2 female torx screws that hold the unit in place. The thermostat is expensive. Some dealers or auto parts want an avg of 125 for that thermostat so please make sure that is the problem before you purchase it. You can sometimes get lucky and find someone posting the unit on e bay. Best luck I have had for any parts for a daewoo is a location in Puerto Rico. The site for this is http://daewooautopartspr.com/ Call them. I got a thermostat for $60 among many other parts. O'Reilly Auto has them for 36.99. They are online.
Daewoo Leganza was created in 1997.
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On the Daewoo Leganza it is located behind the AC compressor.
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