Primary Fuel Filter and Water
Separator
Your vehicle may have this
spin-on filter. It is located
on the driver’s side
frame rail.
It has a clear plastic drain bowl at the bottom. Check
the drain bowl occasionally for any water or particles.
To drain the water or to replace the element, follow the
water draining and element replacement procedure
under Water in Fuel on page 5-12.
Secondary Fuel Filter and Heater
Your vehicle may have this fuel filter and fuel heater.
It is mounted on the left side of the engine.
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.
5-79