1986 Lincoln Mark VII: common problems
Owners of the 1986 Lincoln Mark VII filed 8 complaints with NHTSA, most often about electrical system and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 8
What fails most often
- 1 Electrical system 38% of all complaints
- 2 Engine and cooling 25% of all complaints
- 3 Equipment 13% of all complaints
- 4 Fuel system 13% of all complaints
- 5 Seats 13% of all complaints
- 6 Service brakes 13% of all complaints
- 7 Tires 13% of all complaints
- Electrical system: 3 complaints (38% of all).
- Engine and cooling: 2 complaints (25% of all).
- Equipment: 1 complaints (13% of all).
- Fuel system: 1 complaints (13% of all).
- Seats: 1 complaints (13% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 5 L · petrol · 8 cyl
- automatic, 4-speed
Drive: RWD
Symptoms owners describe
How many of the 8 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 3 | 0 | 0 |
| Engine and cooling | 2 | 0 | 0 |
| Equipment | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Seats | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Air conditioner shut off/ dash buttons stopped working, and brakes failed while driving.
Consumer does not have original rcall letter 87v139000 from dealer concerning fuel line leak.
Vehicle has stalled numerous times at any speed. Repair shop cannot remedy problem.
In trying to pull out of snow, the rear right tire caught fire damaging the vehicle completely. Yh
Electrical short or shock caused the wires in the ignition to burn out. Please describe.
Vehicle parked in garage while owner was asleep. Husband died of smoke inhalation.
When applying the brakes, the driver's side seat moves forward. Please describe.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 11,896 of 36,656 model years in the NHTSA data (top 32% most complained about).
On average one model year of the Mark VII has 7 complaints (15 years in the data). This year has 8, about average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Seats. Occupant sensor, power adjustment, seat mounts.
Other years of this model
Questions and answers
What are the most common problems with the 1986 Lincoln Mark VII?
Owner complaints to NHTSA most often mention: electrical system, engine and cooling, equipment. Total complaints: 8. The most frequent symptoms in complaint texts: smoke, burning smell, fire (38%), brake failure (13%), A/C or heater (13%).
How many service bulletins (TSB) were issued for the 1986 Lincoln Mark VII?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 1986 Lincoln Mark VII from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 1986 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.