Like the Chevrolet Silverado, the heavy-duty version of the Sierra has a stiff ride and lacks the selectable 4WD system and stability control. The 2500 and 3500 HD models are offered in two- and four-wheel drive as well as the dual rear-wheel setup known as a ¿dually.' Three bed configurations are available: a six-foot, six-inch standard; eight-foot long; and the Dually.
Alerts
There are 3 recalls on this vehicle. Learn More.

Reliability

We expect the 2022 Sierra 2500HD will be more reliable than the average new car. This prediction is based on data from 2020 and 2021 models. Select the used car model year to see reported issues with those similar past models.

Overall Reliability
Most Common Trouble Spots
Common Trouble Spot
Common Trouble Spot
The 2008 GMC Sierra 2500HD has been recalled 3 times by NHTSA. View Recalls
Research Years * Redesign year
Worse Better
00*
01
02
03
04
05
06
07*
08
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11*
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15*
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20*
21
Overall Reliability Verdict
NA
NA
NA
NA
POTENTIAL TROUBLE SPOTS
Engine Major
NA
NA
NA
NA
Engine Minor
NA
NA
NA
NA
Engine Cooling
NA
NA
NA
NA
Transmission Major
NA
NA
NA
NA
Transmission Minor
NA
NA
NA
NA
Drive System
NA
NA
NA
NA
Fuel System
NA
NA
NA
NA
Electric System
NA
NA
NA
NA
Climate System
NA
NA
NA
NA
Suspension
NA
NA
NA
NA
Brakes
NA
NA
NA
NA
Exhaust
NA
NA
NA
NA
Paint/Trim
NA
NA
NA
NA
Body Integrity
NA
NA
NA
NA
Body Hardware
NA
NA
NA
NA
Power Equipment
NA
NA
NA
NA
In-car Electronics
NA
NA
NA
NA
Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey for over 300,000 vehicles, our reliability history charts give you a rundown on how 2000 through 2021 vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. NA indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.

Learn more about car Reliability.

Owner Reported Trouble Spots

The Reliability score is based on our latest subscriber survey of 2008 GMC Sierra 2500HD owners. The owner comments describe problems respondents experienced with this vehicle.

Fuel System

Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.

What Owners Say

Emission control devices (includes EGR)

"Diesel exhaust filter depleted causing replacement"

Anonymous, AZ (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
Fuel gauge/sender

"Fuel level sensor failed & had to be replaced"

Warren K., WA (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
Fuel pump

"the primary fuel pump"

Anonymous, CA (2008 GMC Sierra 2500HD 6.6-L V8 diesel)

"developed a leak which caused difficulty in starting the engine. Whole fuel pump unit had to be replaced"

Anonymous, CO (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
Sensors (includes O2 or oxygen sensor)

"My fuel pressure relief valve was faulty from the time the truck was brand new. It was a common problem, due to a bad design of the part. GM did not issue a recall and I finally was able to cap the valve, as a suitable replacement was not available"

Erin E., NM (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)

"Replaced once already and needs replacing again"

Anonymous, AB (2008 GMC Sierra 2500HD SLT 6.0-L V8)

Brakes

Antilock system (ABS), parking brake, master cylinder, calipers, rotors, pulsation or vibration, squeaking, brake failure or wear.

What Owners Say

Normal routine brake wear

"Rakes wear out after 100000 miles, so I replaced them"

Anonymous, ID (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)

"This is the first time that the brake pads, rotors and calipers needed to be replaced"

Anonymous, BC (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)

"During regular servicing break wear was noticed so I had breaks replaced."

Anonymous, MB (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)
Pulsation or vibration

"Started almost immediately the vibration when depressing the petal and a jerky grab have had it looked into by the dealer who could not replicate it"

Anonymous, (2008 GMC Sierra 2500HD Unsure 6.6-L V8 diesel)
Rotors

"Replaced rotors with break pads rather than resurfacing. Not much difference in price."

Anonymous, MB (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)

Exhaust

Muffler, pipes, catalytic converter, exhaust manifold, leaks.

What Owners Say

Exhaust leaks

"Bolts connecting exhaust pipe together broke for the second time."

Anonymous, MB (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)

"Gasket failure at flange due to bolt failure the bolts are over stressed for what they do"

Walter M., MA (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)

"Bolts holding the exhaust pipes together broke for the second time. I believe that the dealer service shop that repaired them the first time did not do a proper repair & I had them repaired at a private shop the second time."

Anonymous, MB (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)
Pipes

"Flange bolts break and the muffler assemble starts to drop down"

Walter M., MA (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)

Paint/Trim

Paint (fading, chalking, cracking, or peeling), loose interior and exterior trim or moldings, rust.

What Owners Say

Paint (fading, chalking, cracking, or peeling)

"Paint fading/cracking/chipping/peeling due to the same moisture concern that causes the rust for these trucks around and above the rear wheel well areas."

James W., GA (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
Rust

"Within and around the rear wheel wells"

Anonymous, AB (2008 GMC Sierra 2500HD SLE 6.0-L V8)

"All these GMC trucks in a range around this year rust terribly around and above the rear wheel well areas."

James W., GA (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)

Suspension

Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.

What Owners Say

Power steering leaks

"One power steering hose leaked at fitting joint."

Anonymous, AZ (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
Wheel bearings

"Right front bearing hub, wore out and making noise. Replaced"

Anonymous, AZ (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)

"front right wheel bearing failed"

Anonymous, AZ (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)

Drive System

Driveshaft or axle, CV joint, differential, transfer case, 4WD/AWD components, driveline vibration, traction control, electronic stability control (ESC), electrical failure.

What Owners Say

4WD/AWD components

"Four-wheel drive ceased to function, and was repaired by the dealer."

Thomas C., VT (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
Differential

"Gears in differential basically blew up. In fairness I should mention that this truck is mainly used for towing heavy trailers."

Anonymous, WA (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)

Climate System

Blower (fan) motor, A/C compressor, condenser, evaporator, heater system, automatic climate control, refrigerant leakage, electrical failure.

What Owners Say

A/C compressor

"Clutch failed"

Anonymous, CA (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
Refrigerant leaks

"Refrigerant hose leaked. I had it replaced and have had no further issues."

Anonymous, TX (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)

Electric System

Alternator, starter, hybrid battery and related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, distributor or rotor failure, spark plugs and wires failure.

What Owners Say

Keyless entry

"Driver door want unlock"

J P., AL (2008 GMC Sierra 2500HD 6.6-L V8 diesel)

Transmission Minor

Gear selector or linkage, leaks, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission.

What Owners Say

Coolers and lines

"Truck developed a leak in one of the transmission cooler lines. The replaced all three lines"

Anonymous, CO (2008 GMC Sierra 2500HD SLT 6.6-L V8 diesel)

Power Equipment

Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, remote engine start, alarm or security system

What Owners Say

Spark plugs or wires failure

"Glow plug failure"

Anonymous, GA (2008 GMC Sierra 2500HD SLE 6.6-L V8 diesel)

Engine Major

Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain or timing belt.

What Owners Say

Engine rebuild or replacement

"valves went at 177,000klms (109,000miles). so I decided to replace the engine as the replacement cost was close to a valve job cost. warranty from GMC was to 100,000miles. this should have been a warranty thing. oil changes were done frequently (every 5,000klm)"

Carmine D., ON (2008 GMC Sierra 2500HD SLE 6.0-L V8)

Engine Minor

Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, oil leaks.

What Owners Say

Oil leaks

"small drips on garage floor"

Richard R., SD (2008 GMC Sierra 2500HD 6.0-L V8)

Body Hardware

Power or manual windows, locks and latches, tailgate, hatch or trunk, doors or sliding doors, mirrors, seat controls, safety belts, sunroof, convertible top.

Engine Cooling

Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating.

Body Integrity

Squeaks, rattles, wind noises, loose or cracked seals and/or weather-stripping, air and water leaks.

In-car Electronics

CD or DVD players, radio, speakers, GPS, communication system (e.g., OnStar), display screen freezes or goes blank, phone pairing (e.g. Bluetooth), voice control commands, steering wheel controls, portable music device interface (e.g., iPod/MP3 player), backup or other camera/sensors.

Compare 2008 Models

Similar Cars
Chevrolet Silverado 1500
Chevrolet Silverado 2500HD
Dodge Ram 1500
Ford F-150
Ford F-250
GMC Sierra 1500
GMC Sierra 2500HD
Toyota Tundra
This score shows whether the model had more or fewer problems overall than the average model of that year, calculated from the total number of problems reported by subscribers in all 17 trouble spots.
Recalls
PROVIDED BY
AIR BAGS
Jan 14, 2020
An inflator explosion may result in sharp metal fragments striking the front passenger or other occupants resulting in serious injury or death.
Summary:
General Motors LLC (GM) is recalling certain 2007-2008 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles equipped with non-desiccated, passenger frontal air bag inflators containing phase stabilized ammonium nitrate (PSAN) propellant that were used as interim remedy parts for previous Takata recalls. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
What should you do:
GM will notify owners, and dealers will replace the front passenger air bag inflators, free of charge. The recall began February 11, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-866-522-9559. GM's number for this recall is N192290990.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 20V011000
Potential Number of Units Affected: 699
AIR BAGS
May 28, 2015
In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator could rupture with metal fragments striking the vehicle occupants, potentially resulting in serious injury or death.
Summary:
General Motors LLC (GM) is recalling certain model year 2007-2008 Chevrolet Silverado 2500HD and 3500HD trucks manufactured November 28, 2006, to August 29, 2008, and 2007-2008 GMC Sierra 2500HD and 3500HD trucks manufactured November 27, 2006, to August 29, 2008. The affected vehicles are equipped with a passenger side frontal air bag that may be susceptible to moisture intrusion which, over time, could cause the inflator to rupture upon its deployment.
What should you do:
GM will notify owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began on July 27, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's numbers for this recall are 15438 and 15817.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 15V324000
Potential Number of Units Affected: 330198
ELECTRICAL SYSTEM
Jul 02, 2014
If the fusible link melts it may come into contact with adjacent components, damage the electrical center cover, the nearby wiring harness conduit and other vehicle components, increasing the risk of a fire.
Summary:
General Motors LLC (GM) is recalling certain model year 2007-2011 Chevrolet Silverado HD 2500/3500 trucks manufactured January 18, 2007, to June 22, 2011, and GMC Sierra HD 2500/3500 trucks manufactured January 22, 2007, to June 21, 2011, and equipped with an auxiliary battery. Owners may unknowingly draw too much current through the vehicle's trailer harness resulting in the melting of fusible link for the auxiliary battery.
What should you do:
GM will notify owners and dealers will replace the jumper harness with one that includes a 40 amp inline fuse, and provide the owner with supplemental Owner Manual information, free of charge. The recall began on August 29, 2014. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 14260.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 14V407000
Potential Number of Units Affected: 9371
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