2002 Saturn SL1 Tranmission noise when shifting

Tiny
JIMHUB123
  • MEMBER
  • 2002 SATURN SL1
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 96,000 MILES
Loud noise when shifting up, occuring around 40 mph. Car then lopes. Same noise when stepping on gas hard at low speeds. Check engine light always on.
How can I determine what tranny I have in this car?
People are telling me that it could be one of many.

Jim
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Saturday, February 27th, 2010 AT 4:25 PM

11 Replies

Tiny
SATURNTECH9
  • EXPERT
They only had one transmission in that model that year. What is the noise ur hearing is it a whinning?Are u sure its comming from the transmission?Go find out what codes u have and bring the numbers back to me. Let me know what u find out.
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Saturday, February 27th, 2010 AT 5:10 PM
Tiny
JIMHUB123
  • MEMBER
Thanx, will do.
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Sunday, February 28th, 2010 AT 4:04 PM
Tiny
JIMHUB123
  • MEMBER
Hi Guys,

Took the car to a transmission guy, who pulled the codes for me.
Got the following:
P0732
P0733
P0734
P1599
P1624 (could not find this one in his book).

Noise I referred to was a hard shift and clank when shifting up.
Jim
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Monday, March 1st, 2010 AT 4:32 PM
Tiny
JIMHUB123
  • MEMBER
Add:

transmission is an taat, the S series type, not the 4t4oe, L series type.

Jim
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Monday, March 1st, 2010 AT 4:35 PM
Tiny
SATURNTECH9
  • EXPERT
Ur p0732 is no 2nd gear p0733 is no 3rd gear and p0734 is no 4th gear p1599 is a stall code. With all those no gear codes and the hard shifting I would think u have pressure concern. But to properly diagnose it u would have to do a line pressure test step pressure test air check all the clutchs make sure the solindos are buzzing make sure the input nut shaft nut is tight and see what the slip monitors are for all the gears. Ur best bet is too take it to someone that knows saturns and doesn't just tell u it needs a new transmission or a complete rebuild most of the time it can be repaired in the car with the tests I said. Let me know what they find.
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Monday, March 1st, 2010 AT 4:50 PM
Tiny
JIMHUB123
  • MEMBER
Thanks.

One more thing. If the Techs code computer was set for the wrong transmission, such as the L series rather than the S, would the codes obtained be correct?
This was the condition when the codes were pulled and then cleared. They did not reappear on the test drive after. This was when tech determined that tranny was different than what his manual said.
Jim
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Monday, March 1st, 2010 AT 5:05 PM
Tiny
SATURNTECH9
  • EXPERT
I really can't tell u for sure if u select the wrong trans if the codes are right or not but if ur trans is doing what u say it doing the diagnoses is pretty much the same.
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Monday, March 1st, 2010 AT 5:32 PM
Tiny
JIMHUB123
  • MEMBER
Thanx.

Will let you know outcome.

Jim
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Monday, March 1st, 2010 AT 5:52 PM
Tiny
JIMHUB123
  • MEMBER
Hi Pros,

Got in touch with Saturn service. They told me this was a common problem with this transmission and that it was the THROTTLE BODY. Transmission does not have to be pulled to fix, throttle body can be removed while in car. Price quoted was $1400 +/_, including labor. Got local tranny repair shop quote for $650. Letting them do it.
Thanks for your advice, was very helpful.

Jim
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Saturday, March 6th, 2010 AT 10:23 AM
Tiny
SATURNTECH9
  • EXPERT
Glad to hear u got it figured out but when they take ur valve body off have them air check ur clutchs atleast while there already there. And I would also have them make sure ur input shaft nut is tight it's really common for the newer s models like urs to be loose it can cause gear codes and even loose reverse all together. Well le me know how it goes.
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Saturday, March 6th, 2010 AT 12:34 PM
Tiny
JIMHUB123
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Thanks again, will do,

Jim
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Sunday, March 7th, 2010 AT 9:54 AM

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