GMC TruckSierra 2500/3500 4WD2014Overview/gmc-truck/sierra-2500-3500-4wd/2014/base/

2014 GMC Truck Sierra 2500/3500 4WD

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2014 Sierra 2500/3500 4WD.

Body TRUCK

The 2014 GMC Sierra 2500/3500 4WD is a heavy‑duty truck built on the robust D‑H platform, featuring a 10‑quart capacity engine oil system that runs on 15W‑40 API CI‑4, a specification chosen for its durability under high‑load conditions. While the vehicle’s overall reliability tally for the year stands at 131 owner complaints—with the most frequent issue being exterior lighting—and it carried 14 recalls, the Sierra’s complaint count was well below the series peak of 147 complaints in 2015, and it sits comfortably ahead of the 2026 low of six complaints, indicating a solid reliability trajectory for that generation.

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity10 qtOEM · verified
Engine oil type15W-40 API CI-4OEM · verified
Lug nut torque140 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 48 Diesel · 730 DIESEL CCA battery, OE oil filter 12690386. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 48 Diesel · 730 DIESEL CCAOEM · verified
Tire sizeLT265-70R18OEM · verified
Wheel / rim8.0 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter12690386 alt 12691158
Engine air filter22845992 alt 25945274
Fuel filter12646512 alt 22990975
Spark plug12680072
Battery88866309 alt 88866271
Front wiper blades25877402
Serpentine belt19210691 alt 12626222
Thermostat89018168 alt 97241130

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 10 qt of 15W-40 API CI-4 engine oil, SAE 75W · SYNTHETIC in the differential, DOT 3 brake fluid. Torque lug nuts to 140 ft-lbs, the oil drain plug to 62.0 ft-lbs. The firing order is 1-8-7-2-6-5-4-3. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity7.4
Brake FluidDOT 3
Differential Gear OilSAE 75W · SYNTHETIC
Differential Gear Oil Capacity6.6 qt
Differential Gear OilSAE 75W · SYNTHETIC
Differential Gear Oil Capacity4.2 qt
Engine Oil15W-40 · API

Engine torques

Cylinder Head StepsInstall the NEW cylinder head bolts.
Exhaust Manifold to Cylinder Head Bolts42 ft-lbs
Intake Manifold to Engine Bolts7.4 ft-lbs
Exhaust Manifold to Cylinder Head Bolts42.0 ft-lbs
Engine Oil Pan Drain Plug18.0 ft-lbs
Engine Oil Pan Drain Plug62.0 ft-lbs
Engine Valve Cover Bolts9.0 ft-lbs
Engine Valve Cover Bolts9.0 ft-lbs

Chassis torques

Leaf Spring to Axle (U-bolts)74.0 plus 90 degrees ft-lbs
Leaf Spring to Chassis Bracket162.0 ft-lbs
Leaf Spring to Rear Shackle129.0 ft-lbs
Leaf Spring Rear Shackle to Chassis Bracket85.0 ft-lbs
Lug Nuts140 ft-lbs
Front Wheel Hub173 ft-lbs

Ignition

Cylinder Firing Order1-8-7-2-6-5-4-3
Cylinder Firing Order1-8-7-2-6-5-4-3
Spark Plug ManufacturerAC Delco
Spark Plug Gap0.037-0.043 in
Spark Plug Torque15.0 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.40-1.62 lbs
Oil GroupPAG
Oil Type46
Oil Capacity6.00-7.10 oz
Standard BCI Group Number48 Diesel
Standard BCI Cranking Performance730 DIESEL cca
Standard BCI Group Number94R

Service checks

Pressure Test15 psi
Radiator Cap Pressure Relief15 psi
Thermostat Opening Temperature188-206 °F
Pressure Test15 psi
Radiator Cap Pressure Relief15 psi
Thermostat Opening Temperature185 °F
Key ON Engine OFF (KOEO)50-60 w/o FPCM
RPM43-45 @ Idle rpm

Brakes

Torque Caliper to Bracket77 ft-lbs / 38 ft-lbs / 74 ft-lbs
Torque to Knuckle221 ft-lbs / 148 ft-lbs / 129 ft-lbs
Minimum Pad ThicknessFront: 0.030; Rear: 0.030 specification
Rotor Max Parallel Variation0.001 in / 0.0007 in
Rotor Runout Limit0.002 in
Rotor Nominal Thickness From1.575 in / 0.787 in / 1.181 in / 1.339 in
Rotor Nominal Thickness To1.575 in / 0.787 in / 1.181 in / 1.339 in
Rotor Minimum Machining1.535 in / 0.748 in / 1.122 in / 1.299 in

Multi-step torque procedures OEM · verified

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1Installation, 110 ft. lbs., step 2: 360 degrees., step 3: 59 ft. lbs., step 4: 125 degrees, install new bolt.110 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
174 ft. lbs., step 2: 100 degrees., step 3: 90 degrees., install new bolt.74 ft. lbs
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Do not allow oil on cylinder head or head bolt bosses · M11 Bolts 1-10:

122.0 ft. lbs.22 ft. lbs
290 degrees90 degrees
370 degrees; M8 Bolts 11-15:70 degrees
122.0 ft. lbs.22 ft. lbs
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Do not allow oil on cylinder head or head bolt bosses · M11 Bolts 1-10:

122.0 ft. lbs.22 ft. lbs
290 degrees90 degrees
370 degrees; M8 Bolts 11-15:70 degrees
122.0 ft. lbs.22 ft. lbs
Cylinder Head — tightening sequence 4 stages

Prep Do not reuse old M12 bolts. Reuse M8 Bolts. Coat all bolts with clean engine oil. · M12 Bolts

137.0 ft. lbs.37 ft. lbs
259.0 ft. lbs.59 ft. lbs
360 degrees60 degrees
460 degrees; M8 Bolts60 degrees
118.0 ft. lbs.18 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
13.7 ft. lbs., step 2: 7.43.7 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
111 ft. lbs., step 2: 1511 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
13.7 ft. lbs., step 2: 7.43.7 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
111 ft. lbs., step 2: 1511 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 97,500 mi; coolant at 150,000 mi. The big-interval services (at 150,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miAccelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · Engine Air Filter Element (inspect) · Engine Oil (inspect fluid level)
Every 22,500 miCabin Air Filter (inspect) · Fuel Filter (replace)
At 45,000 miTransmission Filter (replace)
Every 45,000 miFuel Evaporative Emission Control System (inspect)
Every 97,500 miSpark Plug Wires (inspect) · Spark Plugs (replace) · Transfer Case Assembly (drain & refill) · Transmission Fluid & Filter (replace)
At 150,000 miAccessory Drive Belt (inspect) · Brake Hydraulic System (drain, refill & bleed) · Engine Coolant System (drain, flush & refill) · Transmission Filter (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

Owner complaints about the 2014 GMC Truck Sierra 2500/3500 4WD dominate in one area — the exterior lighting, 56 of 131 reports (43%), well ahead of the next concern. None of this vehicle's 2 recall campaigns target the exterior lighting, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 7 of the reports describe a crash and 3 a fire — a small share of the total, but worth weighing against the exterior lighting pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

14
Open recalls
NHTSA campaigns
1873
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
131
Owner complaints
7 involved a crash · 3 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★★
Side★★★★
Rollover★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 131 complaints on record, top 8 components.

Exterior Lighting56
Air Bags8
Unknown Or Other7
Steering7
Electrical System6
Power Train5
Exterior Lighting,Visibility/Wiper4
Structure3

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

18V267000EquipmentReported 26/04/2018

General Motors LLC (GM) is recalling certain 2009-2014 Chevrolet Silverado HD and GMC Sierra HD, 2009 GMC Topkick 5000, 6000, 7000 and 8000 Series and Isuzu F Series, and 2009-2018 Chevrolet Express, and GMC Savana… Remedy: GM will notify owners, instructing them to contact Kidde to get a replacement fire extinguisher, free of charge. The recall began June 11, 2018. Owners may contact Chevrolet…

21V054000Air Bags:Frontal:Passenger Side:Inflator ModuleReported 05/02/2021

General Motors, LLC (GM) is recalling certain 2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL vehicles originally sold… Remedy: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Sierra 2500/3500 4WD. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2014 Sierra 2500/3500 4WD take?

10 qt of 15W-40-API CI-4, CH-4, per the factory manual.

Does the 2014 Sierra 2500/3500 4WD have open recalls?

NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.