2001 Saturn L200 Driveabilty

2001 SATURN L200
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SATFOOT
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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.
Mar 17, 2010 at 4:37 PM
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SATURNTECH9
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go to a auto parts store like autozone and let me know what code numbers u have in the computer,let me know.
Mar 17, 2010 at 6:08 PM
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SATFOOT
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Took to Advance, they said because no check engine light there would be no codes. Could it be the vehicle speed sensor?
Mar 25, 2010 at 6:40 PM
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SATURNTECH9
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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.
Mar 25, 2010 at 7:43 PM
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SATFOOT
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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.
Apr 6, 2010 at 7:40 PM
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SATURNTECH9
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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.
Apr 6, 2010 at 8:41 PM
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