Engine Bucking And a Stalling During Outside Temperature a Greater Than 85 Degrees

Tiny
CONVAIRLINER
  • MEMBER
  • 2000 DODGE STRATUS
  • 2.4L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
This car has app 90.000 miles. She had a tune up and new catalytic converter at app 78000 miles. When I drive to work at 0530 in the morning in the dark car runs well with no bucking and a rare stall. When I drive home at 1730and it is 85 or better and sunny she will occasionaly buck after 30 or so minutes after starting the trip though the bucking is now becoming more regularly than randomly home. When I exit the interstate and come to the light and she decides to stall it shuts down smoothly as if I had turned the ignition to off. She will also stall randomly driving around town within minutes of use. She likes to stall in the middle of an intersection as you try to go through. The odd thing is if I go from the existing run position to start I can crank till the cows come home and she will not start. If I inmediatly select off then start she starts up as good as when she left the factory. I recently had the computer updated by the dealer for a hard downshift problem which was fixed for two weeks but has since returned. Thank You in advance for your time and expertise Doug Summers
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Sunday, July 27th, 2014 AT 9:47 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Has the check engine light come on? Has anyone checked for trouble codes? Has fuel pump pressure been checked when this happens?
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Sunday, July 27th, 2014 AT 3:45 PM
Tiny
CONVAIRLINER
  • MEMBER
There have been no check engine light or no codes to retrieve. Fuel pressure has not been checked but I can get it checked if you feel it is needed. Thank You
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Sunday, July 27th, 2014 AT 5:42 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Since there are no trouble codes, which would have set if it was an electrical issue, I think the pump is a good place to start.

Do me a favor, if you haven't already, cycle the key from off to on 3 times (not starting the engine) from off to the run position and the 3rd time, let it in the run position. See if the check engine light begins to flash.

Let me know what you find.
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Sunday, July 27th, 2014 AT 8:41 PM

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