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Posted on Jul 07, 2009
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Runs great first thing. After warmed up, runs very

1996 Saturn SL2. Runs great first thing. After warmed up, runs very rough at low RPM and very hard to start until cooled completely. I have replaced the plugs and fuel filter. Could this be a pressure regulator issue?

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  • Posted on Jul 07, 2009
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Could be fuel pressure regulator, fuel injector, sensor, or gasket leak.

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