Question about 2002 GMC Sierra C/K1500

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Just replaced engine in my 97 its a vortec brought it to tdc put in distributar it turns over and tries to start but wont i turn it just a little it acts better but i cant move it far enough

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You are a tooth off,or 180 degrees out .put your finger in number 1 spark plug hole ,have someone tap the key until compression blows out,check crank marks at tdc, remove cap,rotor needs to point #1 on cap. you may need a shop to set timing.

Posted on Mar 14, 2010


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Take the spark plug out of the #1 cylinder and turn the engine by hand until the piston is at the top dead center of its stroke (put a screw driver in the hole and you should be able to tell when its all the way up). now pull the cap off the distributer the rotor should be pointing at the #1 cylinder wire. if not then the distributer is in the wrong possition. remove the distributer and point the rotor in the correct possition(#1 cylinder) and place the distributer back in.also if this is a used engine replace the cap,rotor plugs and wires.the truck should start. Hope this helps you out.

Posted on Mar 14, 2010


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I relaced my distributor. brought piston 1 to tdc and rotor button on no.1. now the motor almost starts but doesn't and smells of raw gas.

Did you bring the number one cylilnder to TDC on the compression stroke? It sounds like you may have put it on TDC on the exhaust stroke?

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