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Re: 2005 Buick 3.8L Vacuum Waveform Gasket Job Then Valves
Posted to Technical Theory Forum on 7/6/2016 9 Replies

please use [2005 Buick LeSabre Custom, Engine/Propulsion Waveform] [2005 Buick LeSabre Custom, Engine/Propulsion Waveform]

The bigger blue are 1 - 4 - back to 1 to make 720 degrees

the waste spark coil fires 1 and 4 -- so first blue is #1 second hump 4 and... Login to read more.

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