Plan d’maintenance Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box

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📖Chevrolet Silverado 2500 HD II facelift Regular Cab Long Box: the consummate heavy-duty fleet tool

Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box (2011-2014)

The facelifted GMT900 Regular Cab Long Box represents the quintessential heavy-duty fleet pickup truck. Engineered with a single two-door cabin, an eight-foot load bed, and the upgraded fully boxed high-strength steel chassis introduced for 2011, it is entirely devoted to industrial haulage, agricultural logistics, and commercial contracting. Comprehensive and disciplined Chevrolet Silverado 2500 HD maintenance is essential to ensure this uncompromising work vehicle survives demanding commercial usage.

Fleet operators favoured the 6.0-litre L96 Vortec petrol V8 for short-distance routes and municipal service due to its uncomplicated mechanical design and tolerance for frequent idling. For sustained towing of heavy machinery, the 6.6-litre Duramax V8 turbo-diesel LML paired with the six-speed Allison automatic transmission provides unmatched hill-climbing authority. However, the introduction of SCR exhaust aftertreatment and higher fuel injection pressures makes routine diesel servicing non-negotiable.

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Entrez votre number plate d’number plate afin de suivre freeement votre Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box

Garajo prépare votre garage et vous permet ensuite de suivre les maintenances, les rappels et les points à surveiller.

Owner notes

The reassuring points, known weak spots and deadlines you should not let slip.

Reassuring points

Reliability

The full eight-foot cargo bed provides maximum load-carrying volume on a rugged, single-cab commercial wheelbase.
The 6.0-litre L96 petrol V8 provides robust, fuss-free operation perfectly suited to severe stop-start municipal duties.
The Duramax LML engine and Allison 1000 transmission offer peerless towing performance with a highly effective smart exhaust brake.

Chronic weak spots

Keep an eye on

Duramax LML fuel delivery: inspect fuel filter replacement records and check the Bosch CP4 pump for metallic contamination.
DEF/SCR emissions equipment: test DEF tank heater resistance, check NOx sensors, and ensure no P204B or P204F codes are present.
Allison 1000 transmission: check shift firmness, verify reverse engagement, and inspect external spin-on filter replacement history.
Commercial cab wear: inspect steering column play, pedal pad wear, driver's seat mountings, and floor coverings for severe fleet fatigue.
Rear axle and chassis: examine rear leaf-spring leaves, bump stops, differential pinion seals, and the heavy-duty tow receiver hitch.

Critical deadlines

Do not miss

Any sign of metal filings in the fuel filter or fuel pressure drop on the LML must be investigated immediately before injectors are ruined.
DEF tank heater failures or emission warnings must not be ignored, as they quickly trigger mandatory engine speed de-rates.
Routine oil changes for the Allison gearbox, transfer case, and front and rear axles are essential on hard-working commercial trucks.
Flattened rear leaf springs, worn steering ball joints, or a fatigued towing crossmember must be replaced before towing heavy trailers.

Fréquences d'maintenance recommandées

Service markers for petrol/diesel versions. Exact intervals vary by engine and model year.

Oil change

Every 15 000 km

Every 1 year

Service

Every 15 000 km

Every 1 year

Brake pads

Every 30 000 km

Every 2 years

Poids ou puissance élevés : usure des number platettes accélérée sur certaines versions

Timing belt / chain

Every 100 000 km

Every 5 years

Battery (12 V)

Every 50 000 km

Every 4 years

Powertrains and average consumption

Average consumption from manufacturer data for the versions available in this generation.

Petrol and diesel powertrains

▾

Petrol, diesel or LPG versions. The intervals shown cover the usual mechanical jobs.

Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box

Estimated average budget

Premium cost

Servicing a Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box sits about 31% above the market average (premium positioning).

Simple oil change~125 €

Full service~355 €

Front brake pads~170 €

Timing-belt kit~650 €

Tyres (set of 4)~590 €

* Indicative estimates for parts and labour.

Frequently asked questions about Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box

What are the common problems on the Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box?▾

Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box owners should especially watch: Duramax LML fuel delivery: inspect fuel filter replacement records and check the Bosch CP4 pump for metallic contamination. DEF/SCR emissions equipment: test DEF tank heater resistance, check NOx sensors, and ensure no P204B or P204F codes are present. Garajo includes these watch points so you can act early.

When should you change the timing belt on a Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box?▾

The timing belt is usually replaced every 100,000 km or 5 years on this type of engine.

Where can I find the service book for the Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box?▾

Garajo offers a free digital service book, always up to date, with reminders and a detailed history for your Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box.

How much does it cost to service a Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box?▾

The service budget for a Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box sits about 31% above the market average (premium positioning). Allow about 355 € for a full service, for example. Garajo estimates your budget by powertrain and tracks what you actually spend, for free.

Which Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box powertrain is best for town use?▾

This model is only available as petrol/diesel. Fuel mix: 2 petrol versions ; 2 diesel versions. In town, petrol/LPG versions are usually the better match; diesel versions make more sense with regular long journeys.

Which Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box powertrain should you choose if you mostly drive on the motorway?▾

This model is only available as petrol/diesel. Fuel mix: 2 petrol versions ; 2 diesel versions. For regular motorway use, diesel versions of this model are usually the best fit (range and refinement at a steady speed).

Compatible engine oil

Which engine oil for Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box?

These links are limited to the engines of this generation when oil data is available.

15W-40 for Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box

Capacity : 9.5 lAPI CJ-4API CK-4 15W-40

5W-30 for Chevrolet Silverado 2500 HD II (GMT900, facelift 2011) Regular Cab Long Box

Capacity : 5.7 lGM dexos 1

Unsure between two viscosities?5W-30 vs 5W-40 0W-20 vs 5W-30 5W-30 vs 0W-30

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