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1994 Saturn SL2 Turbine Speed Sensor location

Tiny
BOBJET69
  • MEMBER
  • 1994 SATURN SL2
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 16,300 MILES
I need to replace the turbine speed sensor on the transmission. Where is it located? I purchased the sensor and did not look for location yet?

Also, does the fluid need to be drained to change the sensor?

Thanks
Thursday, August 5th, 2010 AT 8:24 AM

7 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
It's on the transmission under where the air filter goes. It's right by the transmission filter I would make sure the harness is good the sensor's don't go bad often.
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Thursday, August 5th, 2010 AT 10:40 AM
Tiny
BOBJET69
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What goes bad in the harness? Are there other
items that are connected thru that harness?

Is it hard to change?

I put in the new turbine speed sensor and still have the light and Code 35-36. Mechanic says speedometer also reads from that sensor. Is that correct?

Still have hard shifting. Not driving far in case of
malfunction.
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Tuesday, August 10th, 2010 AT 1:17 PM
Tiny
SATURNTECH9
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You should get a new mechanic if he says the speedometer also reads from that sensor. That's the input speed sensor it tells the pcm what speed the input shaft is spinning inside the transmission. The output/speed sensor tells how fast your going. Now did you change the one by the transmission filter?I emailed you the trouble tree for your code's and a wire diagram. Most likely you have a damaged wire from the sensor to the pcm.I also emailed you where the pcm is.
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Tuesday, August 10th, 2010 AT 7:19 PM
Tiny
BOBJET69
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Unfortunately, it is too small to read.

Thanks for all the other info.

Is the transmission sensor and the vehicle speed sensor the same sensor but used in both positions?
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Wednesday, August 11th, 2010 AT 9:24 AM
Tiny
SATURNTECH9
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I think there both the same sensor. So what's too small to read the wire diagram or the trouble tree?
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Wednesday, August 11th, 2010 AT 12:21 PM
Tiny
BOBJET69
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It's the trouble tree
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Wednesday, August 11th, 2010 AT 1:25 PM
Tiny
SATURNTECH9
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I enlarged it for you and emailed it to you.
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Wednesday, August 11th, 2010 AT 4:07 PM

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