Thread: 1991 gmc 5.7 surging while driving
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Old 04-27-2012, 07:44 AM
maxwedge maxwedge is offline
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Re: 1991 gmc 5.7 surging while driving
Many things can cause this, a full scan will look at O2 inputs as well as other sensors, also the egr could be staying partly open at low speeds.
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