Question about 2000 Saturn SC

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Have a 2000 sc2 that i swaped a 93 trans with.Ran great for about 30 min then downshifted to 1st and shows incorect gear ratio 2,3,4 gear.Local saturn mech. says its in the shifter on the trans since i cant keep yhe continuity setting and that the obd1 vs obd2 trans shouldnt make a difference.Should i use a shifter off a 93 or change the shift rod and go with the newer version.Or am i in left field

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  • dogfix May 09, 2010

    was unaware i needed to reset the computer.When i set the current shifter after i shift from drive to park and back to drive i loose continuity, is this uncommon being i am having trouble finding a 93 shifter

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2 Answers

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  • Master
  • 2,317 Answers

I would change the shift rod and go with the newer version. But I would suspect that the transmission, being an OBD I, is causing your problems. All the research I've done shows that the earliest tranmission you can use is a 1996. But I'm not a Saturn mechanic, I'm just going by an interchange guide. Alot of other models, OBD I and OBD II doesn't interchange.

Posted on May 09, 2010

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  • Saturn Master
  • 1,851 Answers

Using the shifter off the 93 will help isolate the problem for sure. One thing is it takes 30 minutes to reset the computer so - before you change the shifter - remove the negative side of the battery for 45 minutes to an hour - an hour is better. Reattach the negative cable and see if the car shifts different for the first 30 minutes or so. If there is no change - install the 93 shifter and that should Fix Ya. Best of it. Garyhave a 2000 sc2 that i swaped a 93 trans with.Ran - 140a420.jpg

Posted on May 09, 2010

  • Gary Rice
    Gary Rice May 09, 2010

    Since some time ago - The cars computer re fuel to transmission need is regulated through the onboard computer of the car. I think you will find in the end - you have a lousy replacement transmission.

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1 Answer

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General Motors gear ratios
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GM Rear Wheel Drive Transmissions

PTU = Power Transfer Unit (Crossover SUV AWD/4WD)

6 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
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5 Speed Automatic Transmissions

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RPO Trans Name 1st 2nd 3rd
M30 4L60-E
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3 Speed Automatic Transmissions

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M40
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GM Front Wheel Drive Transaxles

6 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
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5 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
Aisin-AW 55-51LE
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M45 Aisin-AW AF33-5
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MJ8 Honda 5AT w/PTU*
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RPO Trans Name 1st 2nd 3rd
MLQ Aisin 81-40LE
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HM 325-4L
Jatco JF405-E
M10 Jatco JF403-E
M13 4T60-E HD
M13 4T60-E
M15 4T65E
M45 Aisin-AW AF33
M57 A245-E
M76 4T65E with PTU*
MD7 4T65E
ME7 4T45-E BAS Hybrid
ME8
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MH1 4T80-E
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MU4 A246-E
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RPO Trans Name 1st 2nd 3rd
M60 GEO Metro
MB3 A131L
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GM Manual Transmissions

6 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M10 Tremec 85mm
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ML9 ZF S6-40
MM6 Tremec T56
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MZ6 Tremec 85mm

5 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M35 Getrag 260
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M50
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M94 Getrag F23
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MG3 Getrag F23
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ML2 Tremec T-5
ML3 Tremec T-5
MT8
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4 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
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RPO Trans Name 1st 2nd 3rd
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YM4 (2005-2007 Chevrolet Aveo)
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M42 Geo Metro
M43 AF23
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M58 Geo Metro
M79 LeMans F13
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M94 Getrag F23
M98 Aisin 55-51E
MB4 Geo Prizm 1.8L
MB5 Geo Prizm
MFB 2008 Chevrolet Epica 5-Speed S/R (D24)
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MG1 HM-282
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