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1998 Chevy Lumina Engine idle

Tiny
RONTHOMPSON
  • MEMBER
  • 1998 CHEVROLET LUMINA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
Hi David. After car gets warmed up. At the stop lights. The engine will stumble while idling at the stoplite. No problems going down the road with stumbling just at the stop light after warm up. Told it might be O2 sensors and which one. Fuel consumption is the same going down the road on trip. What needs changing?

would llike to donate if question is answer. Because I have more questions with my chev. 1500 truck. RT

hope you have PAYPAL! Easier for me.
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Saturday, April 10th, 2010 AT 9:18 AM

1 Reply

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Well if you dont have a check engine light on, you may have some very simple problems. I would start by doing a throttle bore cleaning, and take a look at your idle air control valve. You may also try changing the pcv valve and mapp sensor, I am sure this regimen, will clear you right up. Keep me posted. These are all simple things you can do to keep your vehicle running smooth, also do wires and plugs if you havent yet.
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Saturday, April 10th, 2010 AT 10:40 AM

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