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rough idle. help.

N/A tech, Cold Air Intakes, Spark Plugs/wires, Cat backs, Exhaust...etc

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rough idle. help.

Postby jd daewoo » Sun Aug 11, 2013 10:46 pm

My 2000 lanos runs smooth until I put it in gear. It seems to act as if it is starved for gas. Turn the a/c on and it nearly dies. My mother in law drove it the other day and said it was smoking (white but she wasn't sure if it had a blue tint or not tho). I haven't seen it smoke but fluids seem good. Any idea? BTW, I rebuilt this engine a year and a half ago. New valves, seals, head gasket, valve cover gasket, timing belt, fuel pump, water pump. Thanks in advance.
JD Daewoo
B.S. Civil Engineer
1999 Daewoo Lanos SX
1.6L 16V DOHC
88,xxx Miles

1999 Daewoo Lanos Base
1.6L 16V DOHC
94,xxx Miles
jd daewoo
Posts: 45
Joined: Wed Mar 07, 2012 2:26 am
Location: Tennessee; USA

Re: rough idle. help.

Postby Daniel » Mon Aug 12, 2013 7:00 am

Clean the throttle body, butterfly and IAC valve seat.

Fit a limit plate at 28mm from flange of IAC valve and verify that the pintle can move freely when you switch ignition ON/OFF.
Nubira wagon SE 2000
1.6 DOHC
Posts: 1212
Joined: Mon May 03, 2004 8:28 am
Location: Belgium

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