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1999 Saturn SC2 motor stall / shutters

Tiny
SOFA47
  • MEMBER
  • 1999 SATURN SC2
  • 4 CYL
  • FWD
  • MANUAL
  • 113,200 MILES
Motor started running rough when take off from stop. When stopped idle is approx 1100, & smooth. As pressing throttle car shutters, & may die. I have chanced the, Throttle positioner, plugs, plug wires, IACM. Cleaned the Throttle Body, & intake. 6 Months on 2- O2 sensors. There is no CHECK ENGINE LIGHT.
The new plugs are carboned.
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Sunday, November 15th, 2009 AT 3:02 PM

1 Reply

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
U should check the fuel pressure should be about 40-50psi u could have a bad fuel pressure regulator which is in ur fuel filter also check ur coolant temp sensor thats very common to go bad and a new one is under 20. Let me know what u find.
Louie
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Monday, November 16th, 2009 AT 4:21 PM

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