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Brodie
Dodge Dakota
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1/27/2006
09:45:11
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 Subject: 3.9 Over-revs
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Hello,
I've got a 98 Dakota with the 3.9 v6. I've been experiencing an issue where anytime the truck's been sitting for a while (maybe 12+ hours), when you first get in and start it up, regardless of whether you give it time to warm up or not, it will seriously over-rev. Seems like it runs in 1st or 2nd gear for at least a mile before it finally shifts up. Once it finally shifts up, the problem stays gone until the next time its sat for awhile, but I'm afraid it could be an indication of a bigger problem.
Any ideas? Thoughts? Suggestions?
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MattNC
Dodge Dakota
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1/29/2006
22:31:39
|  RE: 3.9 Over-revs
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Brodie,
I think I know what you are talking about. While driving, instead of the truck shifting at lets say, 3,000 rpms so the next gear, unuually 2nd, it may whine-out till about 4,000 rpms? I have that problems personally. I have reprogrammed the PCM and believe that it has something to do with that. How many miles do you have on your truck. It could also be the TPS, that controlls when the truck is told to shift.
Matt
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?
Dodge Dakota
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1/30/2006
10:56:56
| RE: 3.9 Over-revs
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How many miles on truck ?
Has tranny been serviced - replace fluid and adjust ?
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Brodie
Dodge Dakota
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1/30/2006
11:02:29
| RE: 3.9 Over-revs
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The truck has 103,000 miles on it. Matt, that does sound like the issue I'm having.
I've had the fluid replaced, but no adjustments have been made that I'm aware of.
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Kasey
Dodge Dakota
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2/08/2006
20:51:01
| RE: 3.9 Over-revs
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i had a similure problem with a truck i had a while back. i got a bottle of lucas tranny treatment. it works quite well it was to the point were reverse wouldnt work eather but now it works every time. i had it sitting for a week after that and still no problem. i got it at napa and it was under 20 bucks
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Bobby
Dodge Dakota
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2/09/2006
22:43:33
|  RE: 3.9 Over-revs
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I previously had a 1996 Dodge Ram sport with a 5.9L and it to would do the same exact thing untill the tranny went out. I would recommend getting looked at by a transmission repair shop or go to the Dealer, Because a rebuilt tranny is not cheap and it is very frustraiting
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Justin
Dodge Dakota
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2/14/2006
22:34:48
| RE: 3.9 Over-revs
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My 2000 3.9 was doing the same thing, it would shift fine from 1-2 but from 2-3 it revved to 3500-4000rpm. There is a solution to thios, I was told that there is a transmission seal update, the stock seal does not work well until it is warmed up. This is not me talking it is my local Mopar freak mechanic
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