what would cause car to surge

1997 SATURN SL2
144,500 MILES
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CARMEN5605
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Have replaced IAC, EGR, Plugs and wires. I don't get a service engine light. The headlights also pulse.
May 15, 2012 at 3:19 PM
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FIXITMR
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when does this occur?
May 15, 2012 at 3:38 PM
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SATURNTECH9
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Just to add to this one if the head lights are plusing i would make sure the battery cables are clean and tight.Also have the alternator and battery tested to start with.what kind of plugs did you install?Hopefully not platnuim ones?
May 15, 2012 at 4:19 PM
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