2008 Gmc G1500 problems
The fourth generation of the C/K series is a range of trucks that was manufactured by General Motors. Marketed by the Chevrolet and GMC brands from the 1988 to the 2002 model years, this is the final generation of the C/K model line. In a branding change, GMC adopted the GMC Sierra nameplate for all its full-size pickup trucks, leaving the C/K nomenclature exclusive to Chevrolet.
Internally codenamed the GMT400 platform, GM did not give the model line a word moniker (e.g., "Rounded-Line series" for its predecessor). After its production, the model line would informally become known by the public as the "OBS" (Old Body Style), in reference to its GMT800 successor. In starting a different tradition, the model line overlapped production with both its predecessor and successor; the model line again shared body commonality with GM medium-duty commercial trucks.
Over nearly a 14-year production run, the fourth-generation C/K was assembled by GM in multiple facilities in the United States, Canada, and Mexico. After the 2000 model year, the fourth-generation C/K was discontinued and was replaced by the GMT800 platform (introduced for 1999); the C3500HD heavy-duty chassis cab model remained in production through 2002. In line with the GMC Sierra, Chevrolet subsequently adopted a singular Chevrolet Silverado nameplate for its full-size truck line (which remains in use).
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Common 2008 Gmc G1500 problems
The 2008 GMC Sierra 1500 is known for several common problems that have been reported by owners. One of the most frequently mentioned issues is excessive oil consumption, which is often attributed to defective piston rings, PVC systems, and "active fuel management" (AFM) systems that cause the spark plugs to wear out prematurely and the engines to experience various malfunctions.
Another common problem with the 2008 GMC Sierra 1500 is leaking coolant from a cracked intake manifold gasket, which is an extremely common problem on most GM vehicles made from the late 1990s to the mid-2000s. This issue is believed to be caused by GM's 'DexCool' coolant, which erodes away at the intake manifold gasket.
The 2008 GMC Sierra 1500 also has issues with the automatic emergency braking system, which has led to recalls and incidents.
The ignition switch on the 2008 GMC Sierra 1500 has also been reported to not always work, with mechanics unsure of which part of the system is not functioning properly. Owners have reported waiting for the problem to fail so that the exact issue can be determined.
There have also been reports of door lock failures, particularly in the first 50,000 miles, due to actuators wearing out quickly compared to other vehicles. This issue costs about $200 to replace.
Water leaking into the truck’s cabin is another problem mentioned by owners at about 20,000 miles, with a clogged drain line being the most common source of the problem. Cleaning it out costs about $150.
The 2008 GMC Sierra 1500 also has issues with the paint, with some owners reporting fading, chalking, peeling, or cracking. There have also been reports of loose interior or exterior trim or moldings, and rust.
The infotainment system, including audio, GPS, and phone functions, has also been reported to have issues. The gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, and leaks are also common problems.
The alternator, starter, hybrid battery replacement, hybrid battery related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, spark plugs and wires failure, and auto stop/start are other electrical issues reported by owners.
Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage, power steering, wheel balance, springs or torsion bars, bushings, electronic or air suspension are some of the suspension problems reported by owners.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, and refrigerant leakage are some of the air conditioning problems reported by owners.
Windows, locks and latches, doors or sliding doors, tailgate, trunk or hatch, mirrors, seat controls, seat belts, sunroof, convertible top, and glass defect are some of the interior and exterior problems reported by owners.
Transmission rebuild or replacement, torque converter, and premature clutch replacement are some of the transmission problems reported by owners.
In summary, the 2008 GMC Sierra 1500 has a range of common problems, including excessive oil consumption, leaking coolant, automatic emergency braking issues, engine problems, ignition switch issues, door lock failures, water leaks, paint issues, infotainment system problems, electrical issues, suspension problems, air conditioning problems, and interior and exterior problems.
2008 Gmc G1500 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Gmc G1500 problems, we found that the most common problems with these 2023 model year vehicles are:
- Unknown or other problems
The graph below shows statistics for all 2008 Gmc G1500 vehicle components and the number of complaints received.
2008 Gmc G1500 complaints
The NHTSA has received 1 complaints about various vehicle components related to the 2008 Gmc G1500.
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2017-11-13
- VIN: 3GTEC13J68G
- Components: UNKNOWN OR OTHER
- Summary: TAKATA RECALL: THE DEALER CAN'T REPLACE AIR BAGS
2008 Gmc G1500 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 1 recalls for different components of the 2008 Gmc G1500.
- Manufacturer: FEDERAL-MOGUL CORPORATION
- Components: WHEELS:HUB
- Summary: CERTAIN FEDERAL-MOGUL REPLACEMENT WHEEL HUB ASSEMBLIES WITH THE BRAND NAMES: NATIONAL, CARQUEST P/NOS. 515020, 515021, 515025, 515053, 515054, 515059, AND 515060, SHIPPED BETWEEN JANUARY 23, 2006, AND DECEMBER 20, 2007, SOLD FOR LIGHT DUTY AND MEDIUM DUTY TRUCKS. THE INBOARD RETENTION NUT USED TO MAINTAIN HUB BEARING ASSEMBLY CAN LOOSEN RESULTING IN AN ABS LIGHT INDICATION, NOISE, AND/OR WHEEL SEPARATION.
- Consequence: WHEEL SEPARATION CAN RESULT IN A VEHICLE CRASH.
- Remedy: FEDERAL-MOGUL WILL NOTIFY CUSTOMERS AND WILL REPLACE THE HUB ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 7, 2008. OWNERS CAN CONTACT FEDERAL-MOGUL TOLL-FREE AT 877-489-6659.
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