Question about 2000 Daewoo Leganza

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I have a 2000 Daewoo Leganza. When I first bought it, there was no heat in car, temperature guage was blowing sky high and shutting down engine. It was discovered that there was engine problems, so that was sorted along with new cylinder head gasket, everything worked fine until now. I again am getting no heat in car, finding it considerably harder to demist car (blower still working). Temperature gauge is rising to 3/4 level, but never goes above and does drop while driving, but continually goes up and down. Is this a thermostat problem or is it something else?

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The temp gauge and no heat are two seperate issues, unrelated. The temp gauge fluctuations are a result of the sending unit, mine does the same thing, shows going to 3/4 mark then descending and up and down in synch with the radiator fan activation. Car never overheats and this temp gauge peculiarity seems to be more pronounced when A/C is on and outside temp is over 90F. (triggering the radiator fan frequently to compensate for heat) I read in a post that a resistor placed on the sending unit wires will solve the temp gauge problem but I have not yet tried this solution. As to the heater problem, no suggestions from me.

Posted on Jul 17, 2010

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You have air in the cooling system, it needs bleeding, this is best done from the heater hoses. you cannot have a heating or cooling sysem that is not pressurised. no water no heater no demister no temp guage

Posted on Jan 17, 2009

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SOURCE: COLD AIR BLOWING THROUGH HEATER

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.

Posted on Jan 17, 2009

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1 Answer

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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).
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COLD AIR BLOWING THROUGH HEATER


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.

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1 Answer

I just bought a 2000 model Daewoo Leganza (2.2l dohc engine) I was servicing the engine and decided to check the spark plugs, only to find I could not see them as they were immersed in engine oil. Car...


When the gasket goes bad, the engine will leak oil like crazy, which is what mine is doing at the moment.

As far as I know, it's really easy to replace the head gasket, which is something I'm in dire need of myself. You just unscrew the bolts, take the top part off, replace the gasket, and screw it back together.

I have a service manual, if you'd like to e-mail me..I can forward it to you.

RipPanther1@yahoo.com
~Robin

Jul 27, 2008 | 2000 Daewoo Leganza

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