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Vehicle speed sensor and input shaft speed sensor location please?

Tiny
TONYON75
  • MEMBER
  • 2009 CHEVROLET IMPALA
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Location of the input and output sensor. A bit confused. I bought both input and output sensor from Autozone. I did replace the output sensor and the hard shifting went away but still speedometer acting up.
Sunday, April 10th, 2016 AT 2:36 PM

16 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The speed sensor is on the transmission near the passenger side axle shaft output. Here is a diagram with red arrows showing its location Please let us know what happens. (BELOW) The input sensor is behind the side cover of the transmission. Attached below are the instructions and diagrams of how to replace it. Let us know if you need anything else.

1 - Pressure Control (PC) Solenoid Valve
2 - 1-2 Shift Solenoid (SS) Valve
3 - Automatic Transmission Input Shaft Speed (ISS) Sensor
4 - 2-3 Shift Solenoid (SS) Valve
5 - Automatic Transmission Internal Mode Switch (IMS)
6 - Vehicle Speed Sensor (VSS)
7 - Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
8 - Automatic Transmission Fluid Temperature (TFT)Sensor
9 - Torque Converter Clutch (TCC) Solenoid Valve

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Sunday, April 10th, 2016 AT 3:39 PM
Tiny
INSPECTADECK
  • MEMBER
  • 1 POST
Thanks
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Monday, February 19th, 2018 AT 11:34 PM
Tiny
ERIC ANTHONY URIBE
  • MEMBER
  • 39 POSTS
Hi I have a question. So I have a 2008 3.9 l v6 impala and I bought a scanner tool that reads abs, connected it and showed code c0035 00 and pointed to the left driver side wheel speed sensor. Where is the 10 mm bolt and rest of the harness located? I have been searching for days now to find out where it is located.
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Tuesday, December 24th, 2019 AT 3:47 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
There should be a wiring harness running to the sensor that is in the hub. If there is no harness there, then that is your issue. It should not take you days to find it so I imagine it has been tucked out of the way. Did this issue just happen or did you just buy this vehicle? I can understand if you can't find the speed sensor because that is kind of tucked up behind the rotor but the harness should be the only wiring harness on the entire assembly.

Here is all the info for the code and a picture of the harness and sensor. Let me know if you still can't find it. Thanks
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Tuesday, December 24th, 2019 AT 5:21 PM
Tiny
ALDEN GUSTAFSON
  • MEMBER
  • 1 POST
  • 2009 CHEVROLET IMPALA
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 126,000 MILES
Where is the input speed sensor located on this car? This is not the output speed sensor (VSS) which is on the passenger side of the trans-axle near the final drive. This is the input speed sensor that feeds the turbine speed to the ECM. Not for vehicle speed readout. Anyone know where that is? This car is the SS model.
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Wednesday, March 17th, 2021 AT 4:08 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

The input speed sensor is in the valve body on the side of the transmission. The plate needs to be removed to gain access to the sensor. Picture attached. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Wednesday, March 17th, 2021 AT 4:08 PM (Merged)
Tiny
STEVIE12
  • MEMBER
  • 55 POSTS
  • 2007 CHEVROLET IMPALA
  • 3.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 127,000 MILES
I took my car to Midas to get new transmission picked car up today driving home engine light came on took to AutoZone codes p0700 and p0722 came up. Also, odometer reading stop working. Looked under hood loose also alignment off. Just got front alignment a month ago. As driving home car would not go in gear heard racing sound. Is odometer due to code p0722 TCM? Please help
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Wednesday, March 17th, 2021 AT 4:08 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Code p0722 is for signal from output speed speed sensor signal. That could explain your speedometer etc. I would take it back and complain could just be something unplugged.
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Wednesday, March 17th, 2021 AT 4:08 PM (Merged)
Tiny
STEVIE12
  • MEMBER
  • 55 POSTS
SATURNTECH9 thank you, absolutely right speed sensor signal.
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Wednesday, March 17th, 2021 AT 4:08 PM (Merged)
Tiny
VICENTE82
  • MEMBER
  • 2 POSTS
  • 2006 CHEVROLET IMPALA
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 98,000 MILES
I just purcahsed an 06 impala, the light turned on and came with p0717 code. We took it to the dealer to fix two times and still not fixed. They say they replaced an o2 sensor the then the speed sensor. What advice can I follow to fix myself?
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Wednesday, March 17th, 2021 AT 4:09 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
DTC P0717 : Input Speed Sensor Circuit Low Voltage

If the input speed sensor was replaced then the wiring harness needs to be inspected. Ensure it is not stretched too tightly and also that other components are not pressing on the AT inline 20-way connector body. Also inspect for proper clearance to any other components and wiring in that area.
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Wednesday, March 17th, 2021 AT 4:09 PM (Merged)
Tiny
VICENTE82
  • MEMBER
  • 2 POSTS
I will check that out. Thank you. And as for the sensor, im not sure if the mechanic really replaced it. The check engine light comes on and off
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Wednesday, March 17th, 2021 AT 4:09 PM (Merged)
Tiny
RAULBONILLA
  • MEMBER
  • 1 POST
  • 2006 CHEVROLET IMPALA
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 168,000 MILES
06 chevy impala cant find transmission input speed sensor
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Wednesday, March 17th, 2021 AT 4:09 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,640 POSTS
The input shaft speed sensor is located inside the transmission. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cheers
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Wednesday, March 17th, 2021 AT 4:09 PM (Merged)
Tiny
INSPECTADECK
  • MEMBER
  • 1 POST
  • 2000 CHEVROLET IMPALA
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
I have the sensor part su 1173 I just need to know the location of it so I can replace it asap thank you for your help
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Wednesday, March 17th, 2021 AT 4:09 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
After looking at your title it looks like you are looking for the vehicle speed sensor. This picture is for the 3.8 engine since you did not supply an engine size.

https://www.2carpros.com/images/external/86424768.jpg.gif
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Wednesday, March 17th, 2021 AT 4:09 PM (Merged)

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