GMC 1994 Sonoma Owner's Manual page 59

NOTICE:
Your engine is designed to work with the electronics in your
vehicle. If you add electrical parts or accessories, you could
change the way the fuel injection system operates. Before adding
electrical equipment, check with your dealer. If you don't, your
engine might not perform properly.
If you ever have to have your vehicle towed, see the part
of this
manual that tells how to do it without damaging your vehicle.
See "Towing Your Vehicle" in the Index.
To start your 4.3 Liter engine:
I . 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.
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 three seconds, push the accelerator pedal about one-quarter of the
way down for 12 more seconds, or until it starts.
3. If your engine still won't start (or starts but then stops), it could be
flooded with too much gasoline. Try this:
Wait 15 seconds to let the starter motor cool down. Then push your
accelerator pedal all the way to the floor. Hold it there. Then, hold the
key in "Start" for no more than ten seconds. This clears the extra
gasoline from the engine.
If the engine still doesn't start, wait another 15 seconds and do
it
all
again.
When the engine starts, let go of the key and the accelerator pedal.
2- 13