Water In Fuel Warning Light - GMC TopKick 2007 Owner's Manual

Here are four concerns of some operators. None
of these shows a problem with your fuel gage:
•
The gage moves a little when you turn a
corner or speed up.
•
The gage does not go back to empty when
you turn off the ignition.
•
At the gas station, the pump shuts off before
the gage reads full.
•
It takes a little more or less fuel to fill up than
the gage indicated.
If you have a Caterpillar
®
your Caterpillar Operation & Maintenance
Manual.
180
®
diesel engine, also see

Water in Fuel Warning Light

If your vehicle has the 6.6L DURAMAX
6H diesel engine, this light will come on to
warn you that there is water in the fuel system.
For more information on how this light works, see
Water in Fuel on page 252.
This light is located
above the climate
controls in the center of
the instrument panel.
®
or Isuzu