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Old 03-20-2006, 03:41 AM
atom atom is offline
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00 4.7L flooding when cold start

My 2000 4.7L Durango is flooding its self when I go to start it on cold mornings, even though I keep it in the garage. I did the throttle body clean out and put new plugs in it, but it still does it occasionally. It has never tripped a code or anything just has a hard time starting if it does not start on the first try. If I hold the throttle down and crank it I can keep it running by keeping the RPMs up then it usually dies one more time when I let off the throttle. Then I crank it and it is fine the rest of the day??? It does not always do it by it happens more when its cold.

TPS? O2 sensor? What do you think???
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Old 03-20-2006, 04:03 AM
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Anthony Anthony is offline
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How old is the battery??

I had the same problem when my battery was almost dead.
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Old 03-20-2006, 07:30 AM
Stampede4point7 Stampede4point7 is offline
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battery or idle may be too low? not sure?
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Old 03-20-2006, 02:48 PM
Duner Duner is offline
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Your symptoms could also come from a fuel injector that bleeds down overnight.

Do you get a bunch of black smoke on startup? or just overly long crank times?

What happens if you turn the key on and wait for 15 or 20 seconds before starting it. This wait will give the fuel pump time to pressurize the fuel system if it's all drained overnight.
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Old 03-21-2006, 12:40 AM
Rob454 Rob454 is offline
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Also you have a fuel injected motor. You dont need to push on the gas pedal. In fact youre not supposed to push on it. That may be the reason why you have flooding and hard starts. the computer is trying to feed fuel in the motor cause you are giving it a WOT condition.
Since its cold also turn on your headlights for a couple of seconds. it sort of wakes the battery up
Rob
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Old 03-21-2006, 03:13 AM
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my 03 4.7 tries to flood out after cold start. when I pull out and stop. when I asked the service manager about it. he stated beings the engine doesnt have a cold idle. they made the engine to run rich. my truck never threw a code either. so I wouldnt worry about it.
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Old 03-21-2006, 09:21 PM
joer6 joer6 is offline
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we had 20 below weather here and no probs on starting. i would maybe look at the fuel pressure regulator. if that baby is leaking it will act like it is all loaded up when you go to start it. hope this helps.
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