1997 GMC Sonoma Owner's Manual - Page 63

Starting Your "VORTEC" 4300 Engine 1. Without pushing the accelerator pedal, turn your ignition key to START. When the engine starts, let go of the key. The idle speed will go down as your engine gets warm. 3. If your engine still won't start (or starts but then stops), wait 15 seconds and start over. When the engine starts,let go of the key and the accelerator pedal. I NOTICE: NOTICE: ~~~~ ~~ ~ ~ Holding your key in START for longer than 15 seconds a t a time will cause your battery to be drained much sooner. And the excessive heat can damage your starter motor. 2. If it doesn't start right away, hold your key in START. If it doesn't start in 10 seconds, push the accelerator pedal all the way down for five more seconds, or until it starts. Your engine is designed to work with the electronics in your vehicle. If you add electrical parts oraccessories, you could change the way the engine operates. Before adding electrical equipment, checkwith your dealer. If you don't, your engine might not perform properly. If you ever have to have your vehicle towed, see the partof this manual that how to do it tells without damaging your vehicle. See "Towing Your Vehicle" in the Index. 2-15