Secondary Fuel Filter and Water
Separator/Heater
(Caterpillar
®
Diesel)
If you have a Caterpillar
®
diesel engine, you may
also have this spin-on filter
and fuel separator/heater.
It will be mounted in the
engine compartment on the
driver’s side of the vehicle.
It has a metal drain bowl at the bottom. Occasionally,
check the bowl for any water or particles.
To check or drain the bowl, do the following:
• Shut off the engine.
• 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
(Caterpillar
®
Diesel Engine) on page 5-23 or Engine
Oil (Gasoline Engine) on page 5-24 or Engine Oil
(DURAMAX
®
Diesel Engine) on page 5-28 or Engine Oil
(Isuzu Diesel Engine) on page 5-32 for proper disposal
procedures.
5-80
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