GMC C-Series 2001 Owner's Manual page 245

Fuel Filter (Diesel Engines)
R
The ACDelco fuel filter is located in the component
box. See your Maintenance Schedule for recommended
service intervals.
Primary Fuel Filter and Water
Separator (Option)
It has a clear plastic drain bowl at the bottom. Check the
drain bowl occasionally for any water or particles. To
drain the bowl, shut off the engine. Then partially open
the drain valve at the bottom of the filter. See "Engine
Oil" in the Index for proper disposal procedures.
R
If you have a Caterpillar
diesel engine, you may have
-
this spin on filter. It is
located in the component
box on the driver's side
behind the fender.
Secondary Fuel Filter and Water
Separator/Heater (Option)
It has a metal drain bowl at the bottom. Occasionally,
check the bowl for any water or particles. To check or
drain the bowl, shut off the engine. Then push up on
the spring loaded drain valve until clear fuel is flowing
from the valve. The particles or water will drain out
first. See "Engine Oil" in the Index for proper
disposal procedures.
If you have this filter, you will not have a primary filter.
R
If you have a Caterpillar
diesel engine, you may have
-
this spin on filter and fuel
separator/heater. It is
mounted on the driver's side
of the engine.
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