heater dosent heat

[silver.unicorn]

hello all daewoo owners/fans
i have a 99 model nubira sedan manual 1.6.. i have issues with the heater not working.. was advised to ask what the RNR time is??? (not shure what that means) but everything else seems fine.. tho my air con needs regassing (at tax time) im a australian who has a daewoo .. i reciently replaced coolant.. have been to a airconitioning meacanic who couldnt help.. tho he was cute (dosent help me with the car tho) .. and ideas suggestions .. thanks in advance.. lisa.. silver.unicorn.. love my voodoo the daewoo

[daewoomofo]

does the engine reach normal operating temp? is this a problem you have always had or is this a problem that just started after the coolant addition?

if the engine doesnt reach normal operating temp i would bet your thermostat has stuck open and it needs replaceing.

if this is a problem that just started after adding coolant, i hve to ask h ow low was the coolant before you added some? if it was very low or empty ( or if you did a full colant flush) you might still have air in the coolant system.

if it wasnt too low, and it reaches normal operating temp im betting that the heater core is clogged, or one of the lines leading to/from it are clogged.

[silver.unicorn]

car runs at same temp before and after coolant change.. took about 5ltrs or less of coolant.. i ran car for over 3 weeks with radiator cleaner (changing once every 3 days) i know its hard giving/gettin advice when you dont know the full issues with the car.. or looking under bonnet.. ill take the advice on and i hope that its only something simple.. as my core pack went a fiew weeks ago and i got quoted $300 new .. got away cheaply with a 2nd hand one $60.. thanks in advance lisa wollongong australia.. and voodoo the daewoo.. once i figure out postin pics ill give it a go ..lol

[silver.unicorn]

sorry im guessin the last suggestion full flush.. thanks sorry having a blonde day..!!! take care ..

[Daniel]

sorry im guessin the last suggestion full flush.. thanks sorry having a blonde day..!!! take care ..

Since the engine temp is normal you have probably a clogged heater core like mofo said. Try to fluch the heater core only (remove both heater core hoses at firewall) in a reverse coolant fluid direction method. This will better dislodge any mud. Limit pressure to approx 1bar (15PSI).

[silver.unicorn]

thanks guys ill give it a go today.. i do thank you guys heaps.. thanks mofo n daniel.. see how it goes n ill repost later.. have a good one ..

[nubira88]

Make sure all the vacuum hoses are connected properly under the hood i think the heaters may have a vacuum operated heater tap?

[silver.unicorn]

ok wonderin if anyone had a diagram/pics on where the hoses are ?? .. this is a chick doin the work here so any help pics will be a great help to me.. (dontcha love chicks who work on cars) worked on my outher cars i owned.. 75 ford escort.. 77 te cortina n a charade n outhers who dumb males who thought it was funny to see a chick who knows more than what they do .. fix there car probs.. also.. the power window on my voodoo.. are not working.. any help ideas please!! many thanks in advance and wow some of you guys cars are hot.. theres a daewoo owners forum on facebook also .. some of my pics are there.. have fun all ..