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ttuna2
New User
Feb 7, 2015, 3:00 PM
Post #1 of 8
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saturn tranny shifting
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I have a 2001 saturn s series that does not shift into top gear and lower gears it shifts very hard. Fluid level is good and has been changed recently. I can reset the service engine light but if I drive with the shift selector in drive, when it gets to top gear it revs up and goes back to the next lower gear. Is there a sensor that needs to be replaced and where is it?
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gsferraro
Veteran
Feb 7, 2015, 7:38 PM
Post #2 of 8
(1724 views)
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Re: saturn tranny shifting
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Hello,
You mentioned about the check engine light, did you make note of the code stored? this is a 4 speed trans called a TAAT. Gary
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ttuna2
New User
Feb 22, 2015, 8:28 AM
Post #3 of 8
(1691 views)
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Re: saturn tranny shifting
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The code is P0734, which "Gear 4 Incorrect Ratio".
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gsferraro
Veteran
Feb 22, 2015, 10:31 AM
Post #4 of 8
(1683 views)
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Re: saturn tranny shifting
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Hello,
The p0734 would make sense since this revs out in 4th, this is not a common problem with this trans. What lead up to this, did you feel anything before it started with the problem in 4th gear? Hows reverse? Gary
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ttuna2
New User
Feb 23, 2015, 10:13 AM
Post #5 of 8
(1670 views)
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Re: saturn tranny shifting
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This is my daughters car so I have little knowledge of the progression leading up to the loss of overdrive or the way it slams from one gear to the next. It does take about one to three seconds to get reverse.
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gsferraro
Veteran
Feb 23, 2015, 4:05 PM
Post #6 of 8
(1664 views)
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Re: saturn tranny shifting
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Hello,
It probably shifts hard because of the code present, I would need you to clear the code than put it into reverse and see if your delay is still 1 to 3 seconds. After the code is cleared shut the car off for a minute then start it and see what happens in reverse. A common problem with these transmissions is delay or no reverse, but usually 4th is ok. can you get live data on your scan tool? Gary
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ttuna2
New User
Feb 26, 2015, 5:59 PM
Post #7 of 8
(1618 views)
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Re: saturn tranny shifting
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My scan tool is simple and does not give live data. I will try to check shifting with the code cleared and also the lag in reverse.
Thanks.
ttuna2
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gsferraro
Veteran
Feb 26, 2015, 6:13 PM
Post #8 of 8
(1616 views)
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Re: saturn tranny shifting
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Ok, sounds good.
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