Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1979 Grand Marquis.
The 1979 Mercury Grand Marquis sits at the earliest edge of the model's documented reliability record, which spans owner-reported complaint data from 1990 to 2011. Within that window, the Grand Marquis line saw its highest concentration of reported issues in 2005, when 487 complaints were logged, before trailing off to a low of just 9 complaints by the end of the covered period in 2011. For researchers tracking this generation, the 1979 model year anchors the front of a reliability arc that moved from that early baseline through a mid-period surge and ultimately toward a final year of minimal reported problems. The steep drop from a 2005 peak of 487 to single-digit complaints in 2011 reflects a nameplate whose footprint in the complaint database contracted sharply as the model aged out.
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.
INTERCONTINENTAL AUTO PARTS IS RECALLING 1,937 FUEL FILTERS, P/NOS ALG 44/1 AND PUROLATOR F10024, SHIPPED BETWEEN JANUARY 14 AND FEBRUARY 13, 2008, SOLD FOR USE ON THE VEHICLES LISTED ABOVE. THE FILTER'S OUTLET CAP MAY… Remedy: INTERCONTINENTAL WILL REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING MARCH 2008. OWNERS MAY CONTACT INTERCONTINENTAL AT 800-451-2593.
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
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.