Last post on Oct 04, 2013 at 9:52 AM
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Daewoo Lanos, Daewoo Nubira, Daewoo Leganza, Hatchback, Sedan, Wagon
#166 of 1371 2000 Daewoo Nubira: Fix or Scrap?
May 26, 2004 (8:58 am)
Timing belt broke with 90k miles on car, 40k miles on timing belt (it had been changed at 50k miles). Gates brand belt - they won't repair the car because I don't have dealership records showing replacement and my dealership went out of business over a year ago.
I'm told that it is an interference engine, and therefore extremely likely that the engine is shot. I coasted for a quarter mile before I was able to pull of the road, the engine turning via the transmission the whole time.
My dilemma: Bankrupt car company, parts availability is a joke, bad engine (est. $1,500 rebuild) bad CV joint (est. $400 repair) body damage from previous accident (est. $1,800 repair). Keep it or scrap it? I'm not hurting for a car as I own another, though I do miss the 30 mpg and sporty ride. As all else on the car works well, I think I could part it out for $1,000 or more, though I would rather sell the whole thing at once.
By the way, on a 2000 Nubira a check engine light that comes on intermittedly at first will come on permanently after a few hundred miles. It is likely the secondary cam sensor located behind the valve cover on the passenger side. Mine did the same thing. I even bought the sensor but never put it on, as the sensor is a redundant one and doesn't affect the engine.
May 27, 2004 (11:59 am)
You can get an already rebuilt head at ebaymotors.com for less than $400.
Or replace engine with one from a car wreck.
#168 of 1371 DAEWOO TIMING BELT PROBLEMS
May 30, 2004 (8:18 pm)
Question?? Was the Nubira the model with the timing belt problems or did the Lanos and Laganza suffer the same frequent fate? Most of these engines came from Holden in Austrailia (GM) and hopefully they have been improved since they are used in the Chevy Aveo, Suzuki Forenza and Verona and some Canadian models. Were they all interference engines and if the head is damaged isnt there the likelihood of piston damage too?
Jun 02, 2004 (7:35 am)
The Nubira 2.0L engine is the most notorious regarding timing belt. The problem is not the belt itself, but that the tensioner gets loose after about 50K miles. It does start making a loose chain sound a while before it breaks. So if you are the kind to notice changes in engine sound, you will catch it before it breaks. I caught mine before it broke and had it replaced under warranty. My Leganza with similar mileage had no wear or tear on the timing belt or tensioner. I did replace them just to be on the safe side, and my dealer did it under warranty as well(dealers are really gouging the warranty administrator for Daewoo).
The Lanos is also not as bad. I have seen them go over 60k without breaking the belt. but you have to change it at 60k anyways according to the manual. What will surely fail is the thermostat around 40K miles on the Lanos. It has a plastic housing and it will literally disintegrate. But that is a $20 part and easy to replace.
The Aveo uses the same exact Lanos engine(even the plastic thermostat cover is still there).
The Forenza uses the Nubira engine. We will know in a couple of years if they have fixed the timing belt tensioner problem.
The 2.2L Leganza engine is not used on any current GM/Daewoo models in North America, but GM is using a newer version of this engine on all their small cars now.
The Verona engine is totally different. it has no GM linkage. This is a state of the art engine developed by Dr. Ulrich Bez when he was working for Daewoo. It is non-interference and uses a timing chain instead of a belt. Canadian auto reviewers are claiming that it is of similar quality to Inline six cylinders from BMW. So I expect the Verona to be the most reliable of the GM/Woo offerings.
All other GM/woo engines 1.6 in Aveo, and 2.0L in forenza are interference engines, and if you do not change the timing belt on time, the pistons will hit the valves. The amount of damage depends on what the car was doing at the time. If it breaks when you start the engine, you will only get a few bent valves. If it breaks while you are driving, you might get some piston damage as well.
#170 of 1371 Daewoo timing belt
Jun 03, 2004 (5:35 am)
Well, for now I'm going to consider the Nubira a total loss. The repairs needed to return it to service would total anywhere from a minimum of $800 (not likely) to a maximum of about $1,800. Then there is the body damage, estimated at about $2,500, from a prior accident. These repairs would bring the resale value of the car up to about $2,000. Obviously not a wise investement of capital!
I checked out a used engine on eBay, but it sold for $800 plus shipping. I just don't have the cash sitting around for a purchase like that plus the installation.
#171 of 1371 Re: [jkobty2 #169]
Jun 03, 2004 (8:42 pm)
Joseph, thanks for the great and valuable information. I always enjoy anything you post on any board and it amazes me where and how you come up with some of it. Are you an engineer or connected with an auto company? Or perhaps you have a real knack for locating info on the internet. I asked a well known radiator shop here in Arizona about the plastic thermostat housing you mention. They claim they are actually some type of nylon material and are more common than I thought possible but claim they have not seen a whole lot of problems with them. They advise to change coolant each year (flushing not needed) and to change the thermostat every two years with a factory one (not a cheap aftermarket part) and this will avoid radiator tank and cooling system problems. They claim most problems happen when a thermostats start to hang up and stick and then suddenly open too fast creating pressure problems. They showed me several old ones and could pick out the bad ones and partially bad ones just by the color differences on the shaft. ??? When the Verona came out someone told me that BMW did have a hand in the engine design. I have enjoyed my Suzuki models but am leaning towards Daewoo derivitives for the future. I am impressed and in 2006 there will be diesel models for some markets built by VM of Italy at the new plant in Korea.
Jun 11, 2004 (12:21 pm)
Thanks frenchcar. No I am not connected with any auto company, but I have owned Daewoos only since 1995 and have had great luck with them and I do my own maintenance most of the time. I used to live in Australia so I am quite familiar with these Holden engines as they are common on many GM Holden cars in Australia.
Aveo Thermostat: That one is integrated with the plastic housing. meaning you cannot open the housing and change the thermostat. You will have to replace the whole unit. But it is a very cheap unit at $20. Granted that the 2 lanoses owned by my brother in law and his friend never had the coolant replaced. So it might live longer if you actually maintained the car better.
Verona engine: The BMW link is Dr. Ulrich Bez who was a chief engineer at BMW. But there was no direct input by BMW as such. However there was direct design input from the Munich institute of technology, and Porsche. Remember that this engine was designed during the good old days when Daewoo was still spending the Korean banks money left and right.
#173 of 1371 FOR JOSEPH # 172
Jun 12, 2004 (9:44 am)
Yesterday someone posted a link to an interview with Nick Reilly the head of GMDAT that is interesting that you might enjoy....I agree that Korean car quality has caught up to the Japanese and has passed up USA and Europe. That link showed up on the Chevy Aveo board. I am seriously interested in a 2005 Aveo and they had a score of 5 in the frontal impact crash tests but just scored only 3 in the side impact tests recently at NHTSA and this concerns me. Do you by any chance kbow of an e-mail address for the Holden Export Engine Division?? And one for GMDAT and CEO Nick Reilly?? I have questions and ideas for both of them or perhaps I will have to go through Chevrolet in Detroit which can be a chore getting to the right department....... The intense heat here in Arizona is very hard on cooling systems, A/C systems, batteries and tires but after 3 years here I have learned a good deal and will know what to look for in the future. Very different than when I lived in Michigan or Colorado.
#174 of 1371 KUMHO TIRES FOR JOSEPH # 173
Jun 12, 2004 (12:36 pm)
Have you ever had either Kumho or Hankook tires on any of your cars and how good are they? Im thinking of putting Kumho ASX on my wifes Suzuki Aerio 195X55X15 V speed rating similar to the originals from Yokohoma.. ???
Jun 16, 2004 (6:54 am)
No I really do not know the contact info for Holden or GMDAT, you might be able to look them up using a search engine.
Regarding Kumho tires, they are BAAAAD in the winter. They slip even in the rain, and will cause your brakes to wear out sooner. They last about 40K miles before they are worn out.
Hankooks are a bit better. I still have my Hankooks on the Leganza. They are ok in the rain, but they are BAAAD in the snow. They last longer than the Kumhos.
Remember I live in Canada, so road traction in the severe weather is important to me. Korean tires are not very good in that area.
Funny factoid: If you look at carpoint.com for the Leganza test drive from a while back, the Leganza scored 0.81 g's with the Korean tires. Which is similar to a BMW 5 series with real tires, and much better than the g rating on the new Verona which is based on the Leganza. I wonder if they replaced the Hankooks with Michelin's if it would rate even better than a beamer.