I have an 03 silverado 5.3 v 4x4. Just replaced intake manifold. Chekd n cleaned injectors prior to installing in new fuel rails. All were functioning as they should. Also cleaned throttle body n maf

Asked by Sep 12, 2015 at 09:10 PM about the 2003 Chevrolet Silverado 1500 LS Ext Cab Short Bed 4WD

Question type: Maintenance & Repair

Sensor. Re connected battery n fuel pump
relay . Started right up and idles on its own
but check engine is flashing an it's got a
miss

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