Water In Fuel Light Chart - GMC 2006 DURAMAX Manual

If you have a pickup model and this happens, a WATER
IN FUEL message will appear on the Driver Information
Center (DIC). The water must be drained.
The water must be drained from both chassis mounted
fuel filters. Your dealer can show you how to do this.
5-6
If you have a van model
and this happens, this
water in fuel warning
light will appear on the
instrument panel cluster.

Water in Fuel Light Chart

If the WATER IN FUEL DIC message or water in fuel
warning light comes on, use this chart.
Water In Fuel Light/Message Chart
Problem
Light/Message comes on
intermittently.
Light/Message stays on:
•
At temperatures
above freezing.
•
At temperatures
below freezing.
Recommended Action
Drain water from fuel
filter.
Drain fuel filter
immediately. If no water
can be drained and light
stays on, see your dealer
for assistance.
Drain fuel filter
immediately. If no water
can be drained — water
may be frozen in water
drain system. Water may
be frozen in the fuel lines.
Move the vehicle to a
warm location to thaw
out, and then drain filter
system.