Question about 1993 Saturn SC1

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1993 Saturn,5 speed; engine races when no power is applied to drivetrain, stalls when pulling away from stop, RPM's drop to near stalling when A/C is activated, black soot blows from exaust, exaust system now cloged with soot, service engine light would come on then go off & now remains on, engine has now ceased to operate. Thanks.

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  • bobby Nov 25, 2008

    This has been driving me crazy. Idles good when cold. When I rev it up theres a hesitation. then stalls. I have to hold the pedal to the matal in order to restart. At crusing speed it runs fine but it smells like excessive fuel and mpg has dropped. NO engine codes. Help me please!

  • grahamblake1 Jan 26, 2009

    i have the same problem but my dash lights do not work, can this be caused by the same problem?

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Have you ever changed your Engine Coolant Temperature Sensor (ECTS) ? This small (about the size of your little finger), if bad, will cause your engine to run very erratic. It is a sensor, screwed into the engine, and the other end connected to your car's computer and is not the sensor that shows your coolant temperature on the dashboard. If it is bad, it will keep "telling" the computer that your car is not warmed up, and it needs more fuel. Auto parts stores should have the sensor for less then $20. GET THE ONE WITH THE BRASS TIP. Google "saturn forums", pick "saturn fans" and all the saturn "stuff" is on that forum.

Posted on Dec 03, 2008

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also the EGR valve is a 50k service point.
if the EGR sticks open, Just before a stop sign driving
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my pat gas.
so you are really saying, the rpm drops way below normal?
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but the fast right foot saves the stall?
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the engine tachometer reads what.
that whole post is a contradiction.
ahh, you mean the engine does not accelerate, or the engine bogs.
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can the engine race to 3000RPM in PARK (or neutral)
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