Heater in 2002 daewoo leganza not working

no turn signals changed 4 way switch all fuses ok installed new relay blows radio and clock fuse 15amp was told that the flasher is the wrong one eg35

I have the same prob but i let the car start up for about 5 min and the hot air comes out

In all likelyhood you have a blown head gasket. I had this identical problem in my 2000 Leganza

Is it overheating or just a gauge malfunction? Are you low on coolant? Check at coolant tank. If it is overheating, check for coolant leak at hoses. If no luck there, you might have a head gasket blown. Do you see white smoke coming from tailpipe? Do you see milky substance on dipstick or in coolant tank? These are signs that your head gasket has failed.

Check the valve controlling the flow of coolant to the interior radiator.

replace thermostat.make sure coolant fan is working.also check coolant level.

try looking under the bonnet for a big 50 or 80 amp fuse ,should be near the battery

27th Nov 2007, 15:49 To the above comment: You can't have a 2003 Leganza, because Daewoo stopped selling cars in N. America after the 2002 model year.
A non-operating heater could result from a thermostat that is stuck open, keeping the engine from getting up to normal operating temperature; but if that was happening then you would probably have a check engine light on too.
More likely you have either a stuck or broken temperature control for the heater. Temperature controls are either cable-, or vacuum-operated. Find yours in the heater hose somewhere and see whether you can move the linkage on it. If that causes the heater to work, then you have found your problem. If not, then you may have a clogged heater core, which would probably mean replacement (much more expensive than a thermostat replacement, unfortunately).
Btw, your mechanic does not sound too interested in figuring out what the problem is.

It has a single din radio that can be purchased anywhere for under a hundred bucks. Check the antenna connection. Window regulators can be nought from Dr. auto parts. Go on ebay they go for about 40 bucks. Frank Kent Daewoo in Fort Worth Texas has the largest supply of Daewoo parts.
Good Luck

I DON'T IT'S THE THERMOSTAT, BECAUSE I HAD THE SAME PROBLEM, COME TO FIND OUT IT WAS MY BYPASS HOSE BEHIND THE ENGINE THAT WAS LICKING THE COOLANT. CHECK COOLANT RESEVOIR.