surging

Asked by Nicolai Aug 10, 2012 at 02:16 AM about the Mercury Tracer

Question type: Maintenance & Repair

98 tracer falters, surges. computor readout said sensors--replaced O2 sensors, tran fluid OK,...any suggestions?

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Andrew answered 9 months ago

Is it surging at idle? While moveing? More like stumbling? And there are alot of sensors, which codes did it have when the codes were read?

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Nicolai answered 9 months ago

Thanks for reply, Andrew. Went to garage and then to Ford (both said the front O2)--don't know codes. Re surge: coming to stop, rough idling, wants to die; a flat second or two upon acceleration before car surges ahead (but not always the same). At higher speed, seems to perform normally. My morning: Starbucks, then will replace fuel filter. Urghh. N.

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Andrew answered 9 months ago

O2 sensors can cause this. Ensure the wireing is intact to them. Fuel filter is a good try. Check basics, spark plugs, wires, ignition timing, and even fuel pressure.

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surging

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