Question about 2002 Kia Sedona

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2002 Kia Sedona XL suddenly downshifts

Speed sensor was replaced. Advanced Auto looked up code and recomends to replace shift solenoids A, D, and B. Does anyone know where these are located and have advise on repair? Thank You My 2002 Sedona down shifts into first gear at anytime.at first I thought it was the transmission. We I had the diagonstic test done they said the trans was ok, its the speed sensor.Im looking for a diagram that can show me exactly where its located. Can anyone help

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For the record: if the sensors they're referring to are the input or output shaft speed sensors, they are very easy to find...just remove the air intake box (where the air filter is) and they're right there on top of the transmission. Input sensor is the one closer to the front of the vehicle, output towards the rear.

Posted on Aug 08, 2009

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Both sensors, input and output are under the air cleaner box. Remove the box, ( black box that hold the air cleaner). three or 4 bolts hold it down, 13 mm maybe. Once removed you will see the transmission. The INPUT speed sensor is under the bracket that holds the shift linkage cable down. Remove the two bolts that hold it down and pull it as you rotate the braket towards the drivers side fender, you only need to move it a couple you will see it there, it's very small with a one plug wire attached. This connector is usually siliconed together, you'll probably break it taking it apart, but only one small bolt holds down the sensor. Remove the bolt and pull it out. Be carefull, there will be allot of dirt and debris built up around it, I would clean the area before removing, you don't want sand and old oil residue falling into the trans. The output speed sensor is about a foot away, towards the fire wall, in the middle back part of the trans. it's very accesible from the top with a 10mm socket and a long extension, use two together to get the length, longer the better. Again one small bolt, sensor pulls out, but remember, the sensors connectors will probably be siliconed together, you will probably break the connectors in a fit of rage. These parts are very cheap plastic and if the car is old 2002-2005, they will be very dry and brittle, have electrical tape at the ready to hold the connections together !! Hope this helps.

Posted on May 31, 2011

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Posted on Jan 02, 2017

Molson02536
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SOURCE: 2002 Kia Sedona XL suddenly downshifts

What was the codes exactly that Auto Zone gave you.??? it might just be a simple wire harness that may have gone loose since you did some work on the speed sensor.
Here are the trouble codes for your car.  Good Luck and get the car scanned again for a more define information.

P0751 Shift Solenoid A Performance or Stuck Off

P0752 Shift Solenoid A Stuck On

P0753 Shift Solenoid A Electrical

P0754 Shift Solenoid A Intermittent

P0755 Shift Solenoid B Malfunction

P0756 Shift Solenoid B Performance or Stuck Off

P0757 Shift Solenoid B Stuck On

P0758 Shift Solenoid B Electrical

P0759 Shift Solenoid B Intermittent

P0760 Shift Solenoid C Malfunction

P0761 Shift Solenoid C Performance or Stuck Off

P0762 Shift Solenoid C Stuck On

P0763 Shift Solenoid C Electrical

P0764 Shift Solenoid C Intermittent

P0765 Shift Solenoid D Malfunction

P0766 Shift Solenoid D Performance or Stuck Off

P0767 Shift Solenoid D Stuck On

P0768 Shift Solenoid D Electrical

P0769 Shift Solenoid D Intermittent

P0770 Shift Solenoid E Malfunction

P0771 Shift Solenoid E Performance or Stuck Off

P0772 Shift Solenoid E Stuck On

P0773 Shift Solenoid E Electrical

P0774 Shift Solenoid E Intermittent

P0780 Shift Malfunction




Posted on May 05, 2009

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2-Lock-up solenoid 'B' circuit open or shorted.
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12-(No code 12 used)
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14-Linear (line pressure control) solenoid open or shorted.
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064bef5b-bee7-4ef7-9ccb-98c692c687bc.jpg

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Given the transaxle & the age

I would say it is time to either
part with the vehicle,that would be
my suggestion, while you can, or have the
transaxle rebuilt

Lets be realistic here

Were any of those sensors ever tested
or failed a test,I doubt it

Again-- as with the couple thousand lost souls
that come here every week,you do have a check
light on- so you start there as always

I owned a trans shop,your trans is worn out ,enough said

The shifting symptoms are telling you the problems, like it
is talking to you,now you continue to drive it as everyone does
& ruin it for good

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I suggest that try a bottle of Casite ****** Honey and if that doesn't fix the problem, use the following coupon for a free transmission diagnostic. CLICK HERE

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