Question about 2000 Daewoo Lanos

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2000 Daewoo Lanos intermittently idles rough

My 2000 Daewoo Lanos intermittently runs rough at idle and lacks power under load and stalls. Spark plugs, leads and ignition coil, fuel filter all newly changed. Problem still exists

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  • Anonymous Mar 22, 2014

    car is running rough idleing and spark knocking while driving and has very little power

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  • Daewoo Master
  • 450 Answers

Check throttle body and pcv hoses and ports for blockage possible carbon build up and sticky iac valve

Posted on Jul 20, 2009

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Posted on Jan 02, 2017

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Daewoo lanos idles rough and under load has no power take off is slow then ok after a few kms


timing may be off, the belt for the engine may be lose and need replaced, or you have a vacuum leak.

Jul 05, 2014 | 2000 Daewoo Lanos

3 Answers

My daewoo lanos 1999 wont idle at the lights it stalls, but doesnt run rough, the only way to get it ti idle is to apply the accelerator slightly


You need to replace the IDLE CONTROL VALVE as it gets blocked.Try just tapping it with a bit of wood ,to see if it raises the idle speed..Sometimes just this works.

Feb 23, 2011 | 1999 Daewoo Lanos

2 Answers

Car stalls when ever you come to a stop or slow down a diagnostic revealed several possible causes 1. knock sensor 2. 02sensor and 3. idle control


Knock Sensor - is not an issue
O2 Sensor-just sees the condition of exhaust, during the stall & sets a code

I would look at the Idle Speed Motor, TPS Sensor,even vacuum leaks,Egr Valve.
Don't know your veh systems, Hope that helps some.

May 01, 2010 | 2000 Daewoo Lanos

6 Answers

Running rough


If your car is running rough and it's fuel injected (which yours is). Follow the air intake (black plastic box - housing the air filter that has tubing that goes to the motor) until it reaches the Throttle body (rounded metal air intake at the end of the plastic tube - has one large flap inside). You will want to remove the hose clamp and thoroughly clean the throttle body and the AIC (air idle control valve - small canister attached to the throttle body). Use off-the-shelf cleaner from any automotive store. This takes about 30mins to 1hr depending on your skill level. This will result in a cleaner smother idle and smoother performance. This is a common issue in today's cars. I have to do this once a yr to keep my modified car running happy.

Take a look at the later parts of this article for pictures to give you an idea:

http://forums.nicoclub.com/zerothread/319146

Good Luck

Aug 03, 2009 | 2000 Daewoo Lanos

1 Answer

2000 Daewoo Lanos intermittant misfire trouble code


check fuel filter and check fuel for water or contaminents
then check fuel pressure with gauge also while driving
may have pin hole in leads - spray water with salt solution over HT leads while engine running and then rev to see or here spark jump(missfire)
recheck spark plugs - did you crack any on installation/removal/installation?
what are the codes and description if stored?
what is engine live data parameters like do they look normal (right specs for range/operation)?

Jul 27, 2009 | 2000 Daewoo Lanos

2 Answers

Hi the idle speed is to high on my daewoo lanos 1600, there is a soultion but i dont know where the power lead that goes to the speed valve in the solution it says top of engine, but i dont know what it...


there is a screw at the end of the throttle cable. get someone to rev the engine an your see it move.turn the screw anticlockwise and the idle should slow. clockwise will raise the idle speed.

Apr 02, 2009 | 1999 Daewoo Lanos

1 Answer

Stalls when cold does not idle when first stared


IAC solenoid (Idle Air Control) is not working and remains closed .... air is passing thru the main air intake duct , opened by pedal ... and not by the air bleed conduct (must open while main must be closed .. Pedal Depressed.) Check IAC Solenoid and connectors. Replace if need....

Oct 18, 2008 | 2000 Daewoo Lanos

2 Answers

Car running lumpy, reduced power


Is the garage you took it to a daewoo dealership? If not then try one; they should be able to run a diagnostic. If so, take to a different one.

I would think it is the o2 sensor. If you disconnected it then it sounds like you have the knowledge to replace one. When mine went bad the car didn't stall.

Aug 27, 2008 | 2000 Daewoo Lanos

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