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What does Transmission control do when not working?

Tiny
YANNICRISANTOS
  • MEMBER
  • 2006 KIA OPTIMA
I want to know what does the Transmission cotrol affect when is not working no good.
Monday, July 30th, 2012 AT 2:52 AM

35 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Thats a vauge question there are a endless number of things that could happen. If only it were that easy to diagnose a bad computer. Lets start with what is your car doing?
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Monday, July 30th, 2012 AT 3:15 AM
Tiny
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Well started didn't turn and well the owner put negative with positve to pass energy to the battry after the car made real bad gear changes, well after that the car turns off, when you try to turn it on it does but you put on the 'D' is car shakes it run very slowy and going to like a real small hill turns off and only makes it to fist gear and turns off
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Monday, July 30th, 2012 AT 3:21 AM
Tiny
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So when they jump started it was the polarity switched?Also did you have the battery and alternator tested?Made sure the battery cables are clean and tight?
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Monday, July 30th, 2012 AT 4:32 AM
Tiny
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Did you check all the fuses and is the MIL illuminated?
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Monday, July 30th, 2012 AT 1:45 PM
Tiny
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Battery good and alternator is good, yes I checked all fuses, and no is not on.
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Monday, July 30th, 2012 AT 10:26 PM
Tiny
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Even though the light is not on I would still check for codes.
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Monday, July 30th, 2012 AT 10:35 PM
Tiny
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I will I'm taking it to Kia to tell me what's wrong. Do the codes tells you that it could be a trasmission control?
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Tuesday, July 31st, 2012 AT 1:03 AM
Tiny
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The codes are starting points for diagnose there are a couple of codes here and there that will say to replace a computer if the code sets. But thats not the norm you have to get in there and elimante everything else untill nothing else is left to find a bad computer. Thats what I do before I even think about a bad computer could be causing a certain problem.
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Tuesday, July 31st, 2012 AT 1:10 AM
Tiny
KHLOW2008
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I would think this is more of an engine rather than transmission fault.
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Tuesday, July 31st, 2012 AT 1:00 PM
Tiny
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What scares me is they said this happened after a jump start. The first thing that comes to mind for the power being so low and not shifting is a plugged cat. But that shouldnt have started after a jump start.A bad alternator or battery came to mind too but they said that tested good also would make sense for having to jump start the car.
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Tuesday, July 31st, 2012 AT 5:28 PM
Tiny
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Sometimes the information we receive is not what it should be so couldn't be helped if we get the thing wrong.
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Tuesday, July 31st, 2012 AT 5:50 PM
Tiny
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That is so very true.
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Tuesday, July 31st, 2012 AT 7:18 PM
Tiny
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I went to autozone told me both were good, but the problems started after the owner put the negative with postive cables to the battery, I took it to one auto mechainc told me gas pump he said it was good after checking other things told me the values are bad and have diffrent readings, I went to a second auto mechainc told me the same the gas pump he checked it and said it was good. The resond I think is the trasmission control is because after puting the cable wrong the problems started with the gears to be bad after about 2 weeks the car the car faild and it only turn on shakes when I put 'D' and runs really slow after almost going to 2 gear turns off.
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Tuesday, July 31st, 2012 AT 10:26 PM
Tiny
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Sorry for the wrong information at the first question. I know it makes no sense to jump start, but I jump started it when the car didn't turn on then having an accident with the cables, after that I did take the battery and alternator to auto zone to check and tested good, I hope this information helps now.
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Tuesday, July 31st, 2012 AT 10:35 PM
Tiny
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Thats what I asking from the begining if you jumped it backwards. That can damage a computer or if your lucky blow some fuses or fuseable links.
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Tuesday, July 31st, 2012 AT 11:27 PM
Tiny
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Well they checked the fuses but not the computer I'll have that check Friday.
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Wednesday, August 1st, 2012 AT 1:31 AM
Tiny
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Alright keep me posted.
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Wednesday, August 1st, 2012 AT 2:55 AM
Tiny
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They gave me these codes P0650, P0028.
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Sunday, August 5th, 2012 AT 9:26 PM
Tiny
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P0028 = Intake Valve Control Solenoid Circuit Performance.

P0650 = Fault with the MIL. Is the MIL showing when ignition switch is turned on?
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Monday, August 6th, 2012 AT 1:13 PM
Tiny
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No Because one of the mechanic erase all the codes, kia also told me that the repair is 3,000+
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Monday, August 6th, 2012 AT 4:50 PM

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