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Transmission issues, code P0732

Tiny
NASER NASER
  • MEMBER
  • 2009 KIA AMANTI
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 149,000 MILES
When cold drives nice and smooth, and even when warm you can go days sometimes with no issues, and then all of a sudden when you are about to slow down around second gear she downshifts hard, code p0732, I want to replace the fluid but I also want to see if this code is related to second gear solenoid and how to replace it, it's a shot in the dark but am willing to do it.
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Wednesday, September 4th, 2019 AT 11:48 AM

7 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,240 POSTS
Hello,

The code is the problem which is for the input shaft sensor for the transmission. Here is the location so you can change it out. Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
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Thursday, September 5th, 2019 AT 2:36 PM
Tiny
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  • 836 POSTS
Hmm, that would be easy to change for sure, but why is it saying gear 2 incorrect ratio?
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Thursday, September 5th, 2019 AT 3:16 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,240 POSTS
Because the sensor is not working correctly. We might need to raise the car up. here is a guide that will help:

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Please run down this guide and report back.
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+1
Saturday, September 7th, 2019 AT 12:36 PM
Tiny
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  • MEMBER
  • 836 POSTS
Finally was able to get the sensor and replaced it, took a minute to find it because it was under the shifter cable. Cleaned two other sensors just in case. She is now in limp mode, and I have engine and transmission codes that are the same, o2 and knock sensor. At first when I drove it it jerked when I was slowing down once, and gave the p0732, and the others, cleared it and drove, limp mode as in probably third gear p0326, p0057 and p0137.
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Thursday, November 7th, 2019 AT 11:27 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,240 POSTS
It sounds like you have two issues. We will handle the transmission problem on this post. Can I ask if the speedometer is working correctly?
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Friday, November 8th, 2019 AT 4:02 PM
Tiny
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Yes sir working.
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Friday, November 8th, 2019 AT 4:02 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,240 POSTS
It sounds like the transmission has gone bad or the fluid is low or burnt. here is a guide that can help:

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Please run down this guide and report back.
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Friday, November 8th, 2019 AT 4:07 PM

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