2001 Saturn L200 Driveabilty

SATFOOT

MEMBER
2001 SATURN L200

Engine Performance problem
2001 Saturn L200 4 cyl Front Wheel Drive Automatic

My Saturn started this problem. At freeway speeds the speedometer will fluctuate, going between the correct speed and lower. Then the transmission will shift into a lower gear and rpms go way up. If you reduce the gas it improves the problem.

5 Replies

SATURNTECH9

MECHANIC
30,869 POSTS

Go to a auto parts store like autozone and let me know what code numbers u have in the computer, let me know.

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Wednesday, March 17th, 2010 AT 6:08 PM

SATFOOT

MEMBER
3 POSTS

Took to Advance, they said because no check engine light there would be no codes. Could it be the vehicle speed sensor?

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Thursday, March 25th, 2010 AT 6:40 PM

SATURNTECH9

MECHANIC
30,869 POSTS

There should be codes if ur having the problems ur having. Have them read ur codes anyways u could have some in history of the computer.U could even have body codes that are giving u trouble the auto parts store can't read those unless they have a advanced expensive scanner.U could have a bad speed sensor or even a bad bcm. We need to get codes so we have some kind of starting point. Let me know.

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Thursday, March 25th, 2010 AT 7:43 PM

SATFOOT

MEMBER
3 POSTS

Before spending money on diagnostics I unplugged the sensor on the output side of transmission. This stopped the speedometer from working, so I replaced it ($15 part). This has fixed the problem. (Working for over a week.

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Tuesday, April 6th, 2010 AT 7:40 PM

SATURNTECH9

MECHANIC
30,869 POSTS

Glad to hear u got it figured that bad sensor would have set a code though and would have gave a starting point for us. Thanks for using 2carpros feel free to use us again.