Having problems with your GMC Sierra 1500 ?
Need how to find TDC on 4.3 v-6
\015 Have a '97 GMC Sierra 4.3ltr v-6 Vortex engine. Recently changed a leaking intake manifold gasket. Can't find TDC so i can drop in distributor. Thought i had it but engine won't start. It actually wants to start but misfires. All wiring is correct so no crossed wires. Cannot get distributor lined up correctly to #1 piston.\015
Remove # 1 plug and stick your finger in the hole, roll the engine over by hand, when you start to feel pressure in the cylinder you are near TDC, just check the crank pulley marks to zero it to TDC mark on pulley.
Repair Help & Product Troubleshooting for GMC Sierra 1500
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