Question about 1993 Saturn SL2

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1995 Saturn SL2 5spd, occasional stalling

My car had been stalling when coming to a stop, clutch disengaged and foot off the accelorator. This was sloved with replacing the Throttle Position Sensor with a used one from my 1993 SL2 parts car. Ran great for 2 months. Then it started stalling occasionally at any speed if the accellorator and clutch are disengaged. This is proceeded by a fluttering of the engine while under load and can be avoided by depressing of pumping the accellorator. I thought my wife was crazy but it stalled on me once with week and tryed to stall two other times. Do I replace the TPS again or is this a different problem?

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  • quincy149 Jun 23, 2008

    good advise

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Try replacing ur throttle position sensor.
there r still mny reasons left but replacing sensor would be the initial option.keep us updated.
feel free 4 further assistance .rate the particular experts solution as fixya that helps u understand n solve ur problem

Posted on Jun 23, 2008

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Hi Quincy

I would be suspect of the secondhand throttle sensor. If the first one failed, then the chances are fairly good that a second could also fail. Parts that fail on any equipment are often common complaints and you may have just been touched by the fickle finger of fate. If you can get another one, I would be replacing it first to see what happens. You only notice it stalls with clutch engaged as there is no roll on from the momentum of the car to keep it running. The fact that it misfires at other times may still well be the throttle sensor. It get my techco gut feel vote anyhow. :)

I am more than happy to answer any other questions you may have about it, just give me a hoy :) If you are still unsure, or have problems, then before you give a rating for this advice, please get back to me and we can try some more things.
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robotek



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Posted on Jun 20, 2008

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I think the problem is with the clutch plate, which need a replacement.

Posted on Jun 20, 2008

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It seems that it will be better if you replace the throttle position sensor with a brand new one so we can make sure that its really not the problem and also make sure that everything are connected intact and proeprly..
hope that helps....

Posted on Jun 20, 2008

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Hi,

Possibly, either that or some of your other sensor(s) might be likewise acting up. Perhaps your best bet would be to have a diagnostic scan to determine specifically the root cause/factors affecting your vehicles performance. once diagnosed, you may opt for replacing the erring component yourself or seek the services of a qualified professional.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jun 20, 2008

  • Louie  Role
    Louie Role Jun 20, 2008

    Hi again,

    Often stalling would be fuel related and hence my initial response and agreeing to possibly the Throttle Position Sensor. However, most instances would be clogged fuel lines/rails and therefore primary suspect would be fuel filter (most likely) or weak fuel pump (least likely). Another possible culprit would be a sticky EGR valve (in the open position) (likely). In some remote instances, it could even be clogged injectors.

    So as you can see, a number of possibilities hence my suggestion of the scan.

    If the filter or pump checks out OK, with or without a scan, then focus next on the EGR valve. A quick and dirty (temporary) fix is to remove it (unsnap the clip and remove the 2 screws). Us carburetor cleaner and an old toothbrush. Clean the inside of the bottom/lower part of the valve (don't stick the brush up into the sensor - you will know what I am talking about once you see it) or you can set the bottom in a "carb cleaner bath". That should revive it for a bit of time. Thereafter, do note your mileage, should it start to get worst, a replacement EGR is required.

    Again, goodluck.

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