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garth Unregistered ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
2/06/2001 17:49:20
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Subject: 3.9L V6 5 Speed IP: Logged
Message: I have a problem with the engine stumbling at 2400 rpm and it some times backfiring. There are no problem codes, the dealer says they can find nothing wrong, but the problem is still there. Can anyone tell me what might be wrong.
Thanks
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jaron Unregistered ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
2/13/2001 01:29:53
| RE: 3.9L V6 5 Speed IP: Logged
Message: 99% sure the problem is caused from a worn out oil pump drive gear. seen quite a few 3.9litres, including my own, with the same problem.
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Ryan Unregistered ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
4/03/2001 00:10:02
| RE: 3.9L V6 5 Speed IP: Logged
Message: My dak. runs fine when cold. When it worms up to about 200 degrees it starts having problems. When i get on the gas hard and i have it reved up to about 3500rpm's it starts to spit and sputter. I have changed my air temp. intake sensor already. If anyone knows please write me back. THANKS
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Pete Unregistered ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
4/11/2001 22:46:52
| RE: 3.9L V6 5 Speed IP: Logged
Message: I have a '94 with the same engine and same problems. Been trying to resolve it for some time now until recently I had the timing chain assembly replaced due to it making a severe rattle. On the way home from the dealer it seemed like new with no noise or sputter.
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Carl Dodge Dakota ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
6/25/2001 17:31:26
| RE: 3.9L V6 5 Speed IP: Logged
Message: I have a 1987 Dakota 3.9l automatic with the same symptoms, It turns out to be the O2 sensor inside the carb. Nobody makes a replacement for it. If you disconnect the wiring harness to the carb, It will run full rich, Just like when it is cold and the problem will go away, gas mileage will go away also.
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lil red dak Dodge Dakota
6/30/2001 11:31:10
| RE: 3.9L V6 5 Speed IP: Logged
Message: Carl, your O2 sensor is screwed into your exhaust pipe in front of your cat-con. Do you possibly meen the throttle position sensor?
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Carl Dodge Dakota ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
7/10/2001 12:03:50
| RE: 3.9L V6 5 Speed IP: Logged
Message: Yes there is an O2 sensor in the exhaust pipe. The 1987 dakotas came with a feedback carb, and there is an O2 sensor inside the carb that provides feedback on riching or leaning out the fuel mixture depending on information from the sensor in the exhaust and engine temperature. that is why when it is cold the engine runs fine, because the carb sensor is not functioning until the engine temp warms up a bit.
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jesse rol Dodge Dakota JOIN HERE ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
5/30/2002 15:41:45
| RE: 3.9L V6 5 Speed IP: Logged
Message: does anyone know of a good site to buy some nice preformance parts for my 98. also do you know of anyone with a nice set of r/t rims (chrome) at a descent price?
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