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Input speed sensor

Tiny
SAM BARBARY
  • MEMBER
  • 2009 CHEVROLET COBALT
  • 1.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 91,000 MILES
My mechanic says that the input speed sensor on my car needs to be replaced due to error code and rough shifting. Strangely, the tachometer is not working now. Does the transmission have to be dropped or removed to replace this sensor? I have not been able to find real clear pictures on the location if this part.

Thank you for your help.

Sam
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Sunday, December 24th, 2017 AT 4:29 PM

11 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
The sensor is No 5. From this picture it doesn't appear to require transmission removal to change it
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Tuesday, December 26th, 2017 AT 12:37 PM
Tiny
TERRY_THE_MECHANIC
  • MEMBER
  • 2 POSTS
  • 2005 CHEVROLET COBALT
Transmission problem
2005 Chevy Cobalt 4 cyl Front Wheel Drive Automatic

Where is the input speed sensors located on a 2005 chevrolet Cobalt?
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Monday, October 8th, 2018 AT 5:33 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
On side of the tranny


https://www.2carpros.com/forum/automotive_pictures/261618_Graphic_453.jpg

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Monday, October 8th, 2018 AT 5:33 PM (Merged)
Tiny
KLM39
  • MEMBER
  • 2 POSTS
  • 2006 CHEVROLET COBALT
Where is the INPUT speed sensor on a 2006 Chevy Cobalt LT 2.2 engine? Had to replace fuse box. Now speedometer does not work and car will not shift. It is an automatic. Dealership said to replace the input and output speed sensors. Found and replaced the output sensor fine. CANNOT FIND the input speed sensor. Need to know where on the car this is so that I can replace with the new. Have looked behind front left tire, under side cap of driver's side engine. Do not see it anywhere.
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Wednesday, January 23rd, 2019 AT 5:02 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Its 46 in the diagram its under the transmission side cover.I wouldn't suspect the input speed sensor for the speedo inop/it tells the computer the speed of the input shaft not the output speed sensor. What codes do you have in the computer?Did you replace the inside or engine compartment fuse box?Also why did you replace it?
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Wednesday, January 23rd, 2019 AT 5:02 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Its under the transmission side cover I wouldn't suspect that to cause the speedo to be inop. Why did you replace the fuse box also inside or engine compartment fee box?Did the speedo work before the fuse box replacement?
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Wednesday, January 23rd, 2019 AT 5:02 PM (Merged)
Tiny
KLM39
  • MEMBER
  • 2 POSTS
We replaced the fuse box at the direction of the dealer. They said there was an interior short in the box. They wanted $400 for the part. We got it for $100. It all started when my battery went dead. The anti theft kicked in when we tried to jump it. The car would not start because of the anti theft. Had to tow to the dealer. They had it for three days and said it was the fuse box. We towed it home and replaced fuse box. The car starts and runs but now speedometer doesnt work and car wont shift out of second. It has reverse, first and second. Car is an automatic. Has light on dash flashing says TC with a line/slash through it and light for power steering. We need help. Have spent all our money and still not fixed and newscast to go to work tomorrow!
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Wednesday, January 23rd, 2019 AT 5:02 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So you replaced the inside fuse box with a used one?Before the battery died and the fuse box was replaced the transmission and the speedo worked? Did you jump start the car backwards positive to negative negative positive at some point?Also does power steering work?It would help if I knew the exact code numbers you have in the computer? It would be a Letter followed by a four digit number? Also have you checked all the fuses in the inside fuse box and engine compartment fuse box?Any fuses missing?Especially from the fuse box you replaced? Was the fuse box you got the car from also a automatic transmission? I am trying to figure out why suddenly both the input an output speed sensors failed?That doesn't make a whole lot of sense.
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Wednesday, January 23rd, 2019 AT 5:02 PM (Merged)
Tiny
BHSHOOT
  • MEMBER
  • 6 POSTS
I have a 2008 cobalt with similar problem. The service traction control light is on and engine light. My ob11 reader says its the crankshaft position sensor. So, I got a new one and replace it. Did not help. Cars starts hard also shifts slow. Works ok and the speedometer works but the tachometer doesn't. I need help! Now im wondering about the output speed sensor, could that be my problem?
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Wednesday, January 23rd, 2019 AT 5:02 PM (Merged)
Tiny
ODIE JARRELL BRYANT
  • MEMBER
  • 1 POST
06 CHEVY HHR 2.2 eco. Obd2 code p0717. Input speed sensor. Actual location of sensor. It’s a pain. If your not sure, don’t attempt.
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Saturday, October 10th, 2020 AT 1:02 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Thanks for the addition to the site. That is great information and pictures. I am attaching the process out of the manual as well in case somebody needs that. Let us know if there is anything we can assist you with in the future.
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Saturday, October 10th, 2020 AT 2:52 PM

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