WHEN I AM COMING AT A STOP LIGHT AND BRAKE THE ...

  • Tiny
  • Anonymous
  • 1999 Dodge Avenger
  • 82,000 miles

When I am coming at a stop light and brake, the tachometer will drop and flutter just above zero, and the engine will shake. I checked spark plugs and they are fine.

Friday, November 2nd, 2012 AT 10:40 PM

1 Answer

  • Tiny
  • caradiodoc
  • Expert
  • 24,978 posts

Sounds like the battery might have been disconnected or run dead recently. If so, the Engine Computer lost its memory and has to relearn "minimum throttle" before it will know when it must be in control of idle speed. It also might not give you the normal "idle flare-up" to 1500 rpm when you start the engine. To meet the conditions for the relearn to take place, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the brake or gas pedals.

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Saturday, November 3rd, 2012 AT 3:32 AM

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