Please help timming 1994

07-27-2004, 02:26 AM
Trying to set timming on my 1994 gmc jimmy s-15 4.3 vortec. It calls out to unplug the timming conector? I have no idea what the book is refering to. I unpluged the four wire connector on the distributor but the motor wouldn't turn over.????

08-01-2004, 04:33 PM
The switch that you mention its located under the carpet, on the firewall on the pasenger side. You have to disconnect it before the timming its adjusted, the #1 cylinder its front pasenger side

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