Question about Dodge Dakota

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Hi. I have an 93 dakota 5.2L v8 auto. each time I let my foot off the accelerator the rpms drop to around 600-800rpm and it shifts into OD at 1600rpm. Is there something wrong with the computer? I just did a tune-up and the timing is perfect.

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Sounds more like you just need to adjust the idle valve screw bring the idle too around 1000 900 rpms hope this helps as for the over drive sounds like sensor is going bad and needs replaced

Posted on Sep 13, 2010

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I have a nissan caravan, so I dont know how overdrive works, please help me!


if it is automatic then when the engine rpms is set to correspond with the tail shaft rpms then the transmission control module effects a change into over drive
If there is a change in conditions ,such as a loss of vacuum from acceleration , the TCM down shifts out of OD for better acceleration, return to od when things are again in balance
the same on slowing down--the tcm sensors report an imbalance so the tcm keeps shifting down until the car has stopped.

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Have an fx45.Should the tach read 25-3000 ROMs when moving at 75mph? Auto tranny seems like it should be in higher gear.


there is not info to be able to give a definite answer
to work it out
you have top know the diff ratio, wheel tyre circumference to be able to work from rpms of the engine to road speed
However as a pointer, most cars will be around 3200 rpms at 60mph as this will be direct drive and od causes a drop in rpms
Being an automatic find yourself a good section of low traffic road and start from stop slowly increase the rpms and watch the rpms. keeping the accelerator steady you will see when the auto changes by a drop in rpms. slowly increase road sped until you see the next drop in rpms and so on. Over drive normally comes in around 55 mph or around 3000rpms
I would think that it is working because 3500rpms at 75mph is reasonable rpms to be expected. If it wasn't working I would expect the rpms to be around 3800 to 4000.at 75mph

Feb 07, 2015 | Cars & Trucks

1 Answer

Does the driving on overdrive mode cause high fuel consumption, because the transmission use the first three ratios mostly?


driving in over drive mode actually is what gives the economy as the engine rpms will be around 300 less than direct drive . Lower rpms = fuel savings
OD should come in around 60 klm/hr and drop out at around 50 klm/hr. When you are accelerating hold the pedal in a set position and watch the rev counter (rpms ) and each gear change you will see the rpms drop and then build back up as the vehicle speed increases At 100klm/hr the revs should be around 3200 rpms or less but if over ( say 3500 rpms) then may be the OD is not coming in. One way to test a box operation is to find a speed shop with a dynomometer and test the gear selections against loads and engine rpms

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sounds like the torque converter to me maybe a loose flywheel .

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2000 Ford Focus. Transmission won't upshift unless I let up on the gas pedal. It will shift if I'm accelerating easy, but under a heavier load it won't. - Catalytic Converter isn't blocked...


it sound like it could be a vacuum problem. I have experienced this on cars i have worked on it usually turns out to be a vacuum problem 90 percent of the time.

Jul 14, 2011 | Ford Focus Cars & Trucks

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I don't think my 95 Grand Cherokee is shifting into overdrive all the time. Can you tell me what the RPMs should be for it running 65 MPH?


Depending on differential gearing, most run at about 21 hundred rpms @65. Overdrive usually shifts in at around 45mph. To see if it is engaged, while doing about 50, lightly tap the brake. That should momentarily disengage the od and the rpm's should increase for a moment. @45, you should notice the rpm drop when it engages initially.

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1 Answer

1999 dakota v8 automatic trans drops out of overdrive after getting warmed up and pressure on throttle is decreased even slightly ,but torqe converter is still locked up and will up shift when throttle...


the dodge tranny you are refuring to has a electric od switch in the tranny, this is bad but a good shop should bable to replace for around 350.00 or not much more

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I have a 05 Dakota 4.7 v8 6 speed. I get a gascap code and when driving the rpms stay up between shifts and when slowing down they stay up until stopped, then they will drop to 800 rpms at idle. Are these...


They are seperate issues, The gas cap code usaly means the vehical was fueled while running, Or cap is defective, The idle concern could be a vacume leak, Or a faulty idle air controll motor

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1 Answer

95 dodge dakota having hard time shifting.


Try a tranny service change a place that changes the filter the pan gasket and fluid not some of these quick places that just drain a couple quarts out of the tranny lines and thats it that wont help but a complete tranny service should help.

Jul 30, 2009 | 1995 Dodge Dakota

1 Answer

92 prelude si (auto)


With normal acceleration the 1st to second shift point should be around 2500-3000 rpm. Most of your shifts under moderate acceleration will take place at this same point or when there a light load on the transmission. Under hard acceleration the RPMs will climp higher due to increased power needs and the computer will shift when less power is needed or the RPMs climb to an unsafe speed say5000-6000rpms (depending on where yours redlines). Also going up a steep hill will raise the RPMs higher and goind down a hill will cause a faster shift at lower RPMs. These can always be altered by an individual owner by adjusting shift points, using performance parts and if you have problems (low tranny fluid/trans issues). Your trans RPMS are fine and will vary depening on how your foot accelerates. The shift pattern should be the same every time you drive slow/medium/fast/, look for changes in those patterns you will also catch a problem early.

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