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Transmission shift solenoid replacement

Tiny
RILEYATKINSON2
  • MEMBER
  • 2010 CHEVROLET COBALT
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
I am replacing the two to three shift solenoid, but I need to know, from the top of the transmission to bottom, how the solenoids are numbered. I believe I know, but I want to be absolutely sure. Thanks!
Tuesday, October 9th, 2018 AT 7:11 AM

7 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

Below is the identification and attached is the solenoid arrangement.

Roy

1 - Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
2 - 1-2 Shift Solenoid (SS) Valve
3 - 2-3 Shift Solenoid (SS) Valve
4 - Vehicle Speed Sensor (VSS)
5 - Automatic Transmission Input Shaft Speed (ISS) Sensor
6 - Pressure Control (PC) Solenoid Valve
7 - Torque Converter Clutch (TCC) Pulse Width Modulation (PWM) Solenoid Valve
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Tuesday, October 9th, 2018 AT 10:11 AM
Tiny
RILEYATKINSON2
  • MEMBER
  • 5 POSTS
So, which one is Shift Solenoid A?
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Tuesday, October 9th, 2018 AT 10:40 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The one marked 2-3 shift valve as you requested. Number 3.
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Tuesday, October 9th, 2018 AT 1:30 PM
Tiny
RILEYATKINSON2
  • MEMBER
  • 5 POSTS
It was also throwing up a code about shift solenoid A. So, which one is that?
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Tuesday, October 9th, 2018 AT 1:32 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
What is the code?

Please include as much information as you can.

Roy
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Tuesday, October 9th, 2018 AT 1:34 PM
Tiny
RILEYATKINSON2
  • MEMBER
  • 5 POSTS
It is code P0973- Shift Solenoid A Control Circuit Low.
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Tuesday, October 9th, 2018 AT 1:39 PM
Tiny
ASEMASTER6371
  • MECHANIC
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Possible issues attached. You will need to do electrical testing.

Roy

P0973
Descriptor
Probable Causes
1-2 Shift Solenoid
1-2 Shift Solenoid Valve Control Circuit Open or High Resistance
1-2 Shift Solenoid Valve Control Circuit Short to Ground
2-3 Shift Solenoid Valve
ECM/TRANS Fuse
Ignition 1 Voltage Circuit Open or High Resistance
Ignition 1 Voltage Circuit Short to Ground
Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid
Transmission Control Module (TCM)
Transmission Internal Harness Assembly
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Tuesday, October 9th, 2018 AT 2:05 PM

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