GMC TopKick 2007 Owner's Manual page 99

Notice: Holding your key in START for longer
than 15 seconds at a time will cause your
battery to be drained much sooner. And the
excessive heat can damage your starter motor.
Notice: If the wait to start light stays on
after starting your vehicle, your vehicle may
not run properly. Have your vehicle serviced
right away.
3. If the engine does not start after 15 seconds
of cranking, turn the ignition key to OFF. Wait
one minute for the starter to cool, then try
the same steps again.
If you are trying to start your engine after you
have run out of fuel, see Running Out of Fuel on
page 258.
When your engine is cold, let it run for a few
minutes before you move your vehicle. This lets
oil pressure build up. Your engine will sound louder
when it is cold.
Notice: If you are not in an idling vehicle and
the engine overheats, you would not be
there to see the overheated engine indication.
This could damage your vehicle. Do not let
your engine run when you are not in your
vehicle.
Cold Weather Starting
If your vehicle has the 6.6L DURAMAX
Engine and the Isuzu 6H Diesel Engine, the
following notice applies:
Notice: Your diesel engine has an electric air
intake heater system which reduces white
smoke and helps start the engine in cold
weather. Do not spray starting fluid into the air
intake where it can contact the heater elements.
If you do not have the GM Automatic Ether
Injection System, do not use starting fluid or
you could damage your engine. If you have the
GM system, use only GM approved starting
fluid that has been tested to establish
compatibility with the air inlet heater system.
®
Diesel
99