Saturn SL2 transmission

Tiny
LILRED25
  • MEMBER
  • 2001 SATURN SL2
  • 4.9L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 134,000 MILES
I have a 2001 sl2 with a DOHC motor not that it matters. But I'm having issues with my tans mission getting into 4th gear. Sometimes it will go in 4th but as soon as it does it goes back into 1st and same thing with 3rd gear I recently replaced the trans out of a junkyard car because the differential broke on the last one but I need help getting my car back on the road. Please help me
Monday, January 11th, 2016 AT 11:02 PM

52 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So did all this happen since you replaced the transmission?Also what year and model was the donor car you got the transmission from?
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Tuesday, January 12th, 2016 AT 6:31 PM
Tiny
LILRED25
  • MEMBER
  • 27 POSTS
They guy I got the transmission from siad it worked fine he siad he rove it for about 15 miles and had no issues and the done car was a 96 I believe but had the sane exact motor and I have so I dont know whats going on with it
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Tuesday, January 12th, 2016 AT 8:33 PM
Tiny
SATURNTECH9
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  • 30,869 POSTS
Do you have any codes in the computer?
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Tuesday, January 12th, 2016 AT 9:09 PM
Tiny
LILRED25
  • MEMBER
  • 27 POSTS
Ys but have no way to tell what they are I also replaced the valve body out of my old trans thinking it was that but didnt effect anything
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Tuesday, January 12th, 2016 AT 9:12 PM
Tiny
SATURNTECH9
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  • 30,869 POSTS
We need to know what those codes are so I know where to tell you where to go next.
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Tuesday, January 12th, 2016 AT 9:16 PM
Tiny
LILRED25
  • MEMBER
  • 27 POSTS
Ok ill see if I can get the parts store te tell me the codes and get back with you
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Tuesday, January 12th, 2016 AT 9:17 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Write them down I want the exact numbers.
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Tuesday, January 12th, 2016 AT 9:18 PM
Tiny
LILRED25
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  • 27 POSTS
Ok I will
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Tuesday, January 12th, 2016 AT 9:21 PM
Tiny
LILRED25
  • MEMBER
  • 27 POSTS
I have the codes and im not happy with them PO705 PO706 PO708 PO732 PO733 and PO734
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Thursday, January 14th, 2016 AT 9:23 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
If you have the wrong transmission in the car it will set a p0732 p0733 and P0734 what is the vin number on the transmission?
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Thursday, January 14th, 2016 AT 7:37 PM
Tiny
SATURNTECH9
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Is the selector switch on the transmission plugged in there should be three connectors plugged into it.
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Thursday, January 14th, 2016 AT 7:46 PM
Tiny
LILRED25
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  • 27 POSTS
All 3 are connected including the ground wire and 2 plugs on the side of it
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Thursday, January 14th, 2016 AT 7:49 PM
Tiny
LILRED25
  • MEMBER
  • 27 POSTS
I'll have the vin when I get home in about 30 mins
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Thursday, January 14th, 2016 AT 7:53 PM
Tiny
SATURNTECH9
  • MECHANIC
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Alright the other codes are selector switch codes that can cause some issues also.I wish you had a scan tool that can read what the selector switch says gear position verus what gear you have in. You could try adjusting the selector switch. Do you have a multi meter?
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Thursday, January 14th, 2016 AT 8:03 PM
Tiny
LILRED25
  • MEMBER
  • 27 POSTS
The vin on the transmission is 8UZ292859
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Thursday, January 14th, 2016 AT 8:45 PM
Tiny
SATURNTECH9
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There should be more to that vin I need the eigth digit of the vin
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Thursday, January 14th, 2016 AT 10:14 PM
Tiny
LILRED25
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  • 27 POSTS
Thats all that I saw and the motor is 9 digits as well
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Friday, January 15th, 2016 AT 6:13 AM
Tiny
SATURNTECH9
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I was wrong I just looked that is all the digits they give you.I need the digit to the left of the 8. If that's a single cam engine transmissioni t will set all those gear codes. They different gear ratios. The computer will think the transmission is slipping. As far as the selector switch codes I would need to see what the selector switch reads on the scan tool. If any the gear positions read invalid instead of the gear you shift into.
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Saturday, January 16th, 2016 AT 8:33 PM
Tiny
LILRED25
  • MEMBER
  • 27 POSTS
No it's a DOHC motor
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Saturday, January 16th, 2016 AT 11:06 PM
Tiny
SATURNTECH9
  • MECHANIC
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You need to address the selector switch codes like I said before you would have to have a scan tool to read what the scan tool. Says as you put in reverse drive park etc. To see if any of them reads invalid indicating you have a bad selector switch. Unless for some reason the selector switch got moved at some point when the transmission was put in. Do you have a multi meter that reads ohms?
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Sunday, January 17th, 2016 AT 8:24 AM

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