Diesel Particulate Filter (Diesel Engine) - Chevrolet Kodiak 2008 Owner's Manual

Diesel Particulate Filter (Diesel
Engine)
Your vehicle has a Diesel Particulate Filter (DPF) as
part of the exhaust system to reduce vehicle emissions.
The DPF requires a unique exhaust tailpipe with an
exhaust cooler. The exhaust cooler mixes air with the
exhaust at the tailpipe. This lowers the exhaust
temperature before it leaves the tailpipe.
The DPF, the tailpipe, or other exhaust system
components must not be altered. The area where the
exhaust cooler connects to the tailpipe should be
inspected, especially the area where the fresh air enters
the cooler. Make sure the openings are not restricted
or plugged with mud or dirt which could inhibit exhaust
gas cooling. See "Exhaust System Inspection" under
At Least Twice a Year on page 6-27.
2-46
The DPF will regenerate (self-clean) itself as part of
normal operation. During regeneration, the green DPF
indicator is lit and you will notice a difference in
engine noise and engine speed, but this is normal. The
Engine Control Module (ECM) controls this function
based on several factors including the amount of fuel
consumed, hours of engine operation and miles driven.
Notice: Use of diesel fuel other than Ultra Low
Sulfur Diesel (15 ppm sulfur maximum) or engine oil
other than low ash CJ-4 oil will cause permanent
damage to the DPF and related components.
This damage would not be covered by your
warranty.
Your DPF equipped vehicle has specific fuel and engine
oil requirements. See What Fuel to Use on page 5-9
and Engine Oil (Caterpillar
page 5-23 or Engine Oil (Gasoline Engine) on page 5-24
or Engine Oil (DURAMAX
or Engine Oil (Isuzu Diesel Engine) on page 5-32 to
make sure you use the required fuel and engine oil.
®
Diesel Engine) on
®
Diesel Engine) on page 5-28