Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1979 K2500.
The 1979 GMC Truck K2500 is a heavy‑duty pickup from GMC’s K‑series line, representing the early generation of the brand’s full‑size work trucks. Although its production predates the complaint data set, the model’s later years (1990‑1996) show a clear reliability trend, with the fewest recorded issues in 1992—just a single complaint—and the most in 1996, when 25 complaints were logged. This contrast highlights that the 1979 K2500 sits at the beginning of a period whose reliability peaked in the early‑1990s before a modest increase in reported problems toward the mid‑1990s.
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Showing 1 of 1 campaigns on record for this vehicle.
CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. THE AFFECTED FILTERS… Remedy: HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 2007. OWNERS CAN CONTACT FRAM CUSTOMER SERVICE TOLL-FREE AT 1-800-890-2075.
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
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Cross-vehicle references for the kinds of data on this page.
NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.