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International Automotive Technicians Network
Re: Intermitt severe buck 2003 V6 Chevy
Posted to Snap-on Handheld Users Group on 12/26/2007

The secondary pattern is horrible during bucking event [2003 Chevrolet Silverado 1500, Ignition - Secondary Waveform]. (Severe lean is the indication) The secondary pattern is good at all other times (I checked it against a 1999 4.3W) Login to read more.

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