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STALLING ON COLS START ONLY

Tiny
DPL0759
  • MEMBER
  • 2003 DODGE STRATUS
  • 85,000 MILES
IT TAKES ABOUT 5-10 MIN IN THE MORNING OR AFTER CARS HAS BEEN SITTING FOR SEVERAL HRS TO START. CRANKS FINE THEN STALLS. I MUST REV UP RPMS AND HOLD FOR A PERIOD OF TIME UNTIL IT WARMS UP THEN RPS WILL IDLE NORMAL AND NOT STALL OUT. OTHERWISE IT WILL KEEP STALLING OUT. IVE CHECKED FOR VACUMN LEAKS, CLEANED AND SPRAYED THROTLE FOR STICKING AND CLEANED OUT ENTIRE INTAKE MANIFOLD. COULD THIS BE A BAD IAC MOTOR DUE TO IT ONLY HAPPENS ON COLD STARTS AND IT MIGHT NOT BE REACHING A PROGRAMMED SETTING IN THE COMPUTER.
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Monday, April 23rd, 2012 AT 12:04 AM

2 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,741 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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Monday, April 23rd, 2012 AT 12:09 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have a check engine light?

Check the fuel pressure, engine coolant temperature sensor, EGR and IAC valves
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Monday, April 23rd, 2012 AT 12:09 AM

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