Transmission valve body replacement or repair?

2008 INFINITI G35
117,000 MILES • 3.5L • V6 • 2WD
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MANN551
  • MEMBER
  • 1 POST
Good afternoon, first of all I want to thank you for your time.

The first symptoms I have experienced were when hitting speed over 60 MPH it wouldn’t shift gears to speed up, but RPM would keep climbing. Another symptom is when coming to a sudden stop, if I accelerate suddenly the car shakes before speeding up.
I have a P1757 code saying Front Brake solenoid. My question to you would be, what is the best approach to this repair? I have been searching for a donor transmission from the same vehicle but no clue if it will work as simple as a swap. My other option would be opening the valve body and soldering on the connections then put it all back together.

Thank you
May 23, 2023 at 7:31 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

The code indicates there is an electrical issue. It could be something as simple as a connector, so that is where I would recommend starting rather than replacing it.

As far as the code, I attached the diagnostics below. Take a look through them and let me know if you are comfortable performing them

Take care,

Joe

See pics below.
May 24, 2023 at 8:26 PM