Chevrolet Silverado HD Wartungshandbuch PDF herunterladen (Seite 39)

Black plate (12,1)

Chevrolet/GMC Duramax Diesel Supplement (GMNA Localizing-U.S./Canada-

7132827) - 2015 - CRC - 10/21/14

9-12 Driving and Operating

Diesel Particulate

Filter

The 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 to lower the temperature

before it leaves the tailpipe.

The DPF, the tailpipe, or other

exhaust system components must

not be altered. Inspect regularly and

clean any mud or dirt from the

exhaust cooler, especially where the

exhaust cooler connects to the

tailpipe and the openings where

fresh air enters the cooler.

The DPF will clean itself as part of

normal operation. Several factors

including fuel consumed, hours of

engine operation and miles driven

are monitored by the Engine Control

Module (ECM). The self-cleaning

occurs approximately once per tank

of fuel.

{

Caution

Permanent damage can occur to

the DPF or related components if

the required Ultra Low Sulfur

Diesel (15 ppm sulfur maximum)

or low ash CJ-4 engine oil is not

used. This damage would not be

covered by the vehicle warranty.

Under certain driving conditions,

such as stop-and-go traffic, the filter

cannot clean itself. A message

comes on when the DPF is dirty and

needs to perform a self cleaning.

See Diesel Particulate Filter

Messages on page 5-14.

For the filter to clean itself, the

vehicle must be driven above

50 km/h (30 mph) until the message

goes off. This will take about

30 minutes. See Diesel Particulate

Filter Messages on page 5-14.

{

Warning

During DPF self cleaning or

during extended idling in P (Park),

the exhaust system and exhaust

gases are very hot. Things that

burn could touch hot exhaust

parts under the vehicle and ignite.

You or others could be burned.

Do not park, or idle for an

extended period of time, near or

over papers, leaves, dry grass,

or other things that can burn.

Keep the exhaust area clear of

material that could ignite or burn.

See Parking over Things That

Burn on page 9-11 for more

information.

{

Caution

Extended idle should be avoided

because the DPF system is not

capable of self cleaning at idle.

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