1986 Hyundai Excel: common problems
Owners of the 1986 Hyundai Excel filed 13 complaints with NHTSA, most often about powertrain and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 13
- involving a crash
- 1
What fails most often
- 1 Powertrain 31% of all complaints
- 2 Electrical system 23% of all complaints
- 3 Engine and cooling 15% of all complaints
- 4 Fuel system 8% of all complaints
- 5 Seat belts 8% of all complaints
- 6 Service brakes 8% of all complaints
- 7 Structure 8% of all complaints
- 8 Tires 8% of all complaints
- Powertrain: 4 complaints (31% of all).
- Electrical system: 3 complaints (23% of all).
- Engine and cooling: 2 complaints (15% of all).
- Fuel system: 1 complaints (8% of all).
- Seat belts: 1 complaints (8% of all), 1 of them with a crash reported by the owner.
Symptoms owners describe
How many of the 13 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) |
|---|---|---|---|
| Powertrain | 4 | 0 | 0 |
| Electrical system | 3 | 0 | 0 |
| Engine and cooling | 2 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Seat belts | 1 | 1 | 0 |
| Service brakes | 1 | 0 | 0 |
| Structure | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
| Visibility | 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.
Consumer was in an accident equipment failure driver seat belt. Tt
Consumer cannot start vehicle/if the wrong one was purchased it will cause overheating,burning of the ignition wires which could result in a fire. (sparker p/n [phone]0).
Consumer may have the wrong sparker/stricker within the ignition system. Yh
Transmission failed due to nut inside transmission within input shaft, havinb the ability to backoff, allowi ng discontinuence of power.
Transmission failed prior to recall, recall repairs refused due to lack of maintenance records.
Passenger and drivers side doors will not close properly, when driving will come open. Tt
Engine would flood because carburetor choke would not properly adjust. Tt
#pe94-003 the heater core , radiator was replaced within four years at consumer expense. Tt
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 9,843 of 36,656 model years in the NHTSA data (top 27% most complained about).
On average one model year of the Excel has 22 complaints (15 years in the data). This year has 13, below average.
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- 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.
Other years of this model
Questions and answers
What are the most common problems with the 1986 Hyundai Excel?
Owner complaints to NHTSA most often mention: powertrain, electrical system, engine and cooling. Total complaints: 13. The most frequent symptoms in complaint texts: transmission slipping (23%), brake failure (8%), A/C or heater (8%).
How many service bulletins (TSB) were issued for the 1986 Hyundai Excel?
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 Hyundai Excel 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.
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.