2002 Dodge Durango

Tiny
COACHBKP
  • MEMBER
  • 2002 DODGE DURANGO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 19,000 MILES
Car running fine then next day went to start and made noise like battery. Then tried again and would start but won't stay running.

Changed plugs and no help
Sunday, June 13th, 2010 AT 12:33 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Hi coachbkp. Welcome to the forum. What kind of noise is "like a battery"? Do you mean a single kind of loud clunk from the starter but it doesn't spin the engine or do you mean a rapid clicking noise like a ratchet? Have you solved that problem now that it's running? If so, and the battery was disconnected or run dead, the Engine Computer has to relearn "minimum throttle" before it will know when it must be in control of idle speed. Until then, it will typically stall when coming up to a stop sign, or it will stall right after starting.

To meet the conditions for the relearn to occur, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the brake or gas pedals. When the computer sees high manifold vacuum for seven seconds, it knows you are coasting so it knows your foot is off the gas pedal. It memorizes the reading from the throttle position sensor at that time. From then on, whenever it sees the same voltage, it will control idle speed. Otherwise it will leave it up to you.

Caradiodoc
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Sunday, June 13th, 2010 AT 3:18 PM

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