AI Damage1999 Harley-Davidson Flhtcui: common problems
Owners of the 1999 Harley-Davidson Flhtcui filed 10 complaints with NHTSA, most often about engine and cooling and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 10
- involving a crash
- 2
What fails most often
- 1 Engine and cooling 50% of all complaints
- 2 Electrical system 20% of all complaints
- 3 Fuel system 20% of all complaints
- 4 Service brakes 10% of all complaints
- 5 Tires 10% of all complaints
- Engine and cooling: 5 complaints (50% of all).
- Electrical system: 2 complaints (20% of all), 2 of them with a crash reported by the owner.
- Fuel system: 2 complaints (20% of all).
- Service brakes: 1 complaints (10% of all).
- Tires: 1 complaints (10% of all).
Symptoms owners describe
How many of the 10 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) |
|---|---|---|---|
| Engine and cooling | 5 | 0 | 0 |
| Electrical system | 2 | 2 | 0 |
| Fuel system | 2 | 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.
While driving various speeds, the motorcycle stalled without warning. As a result of the failure, the contact lost control and flipped the motorcycle. The driver and passenger were injured, which required medical attention. The contact was placed in a medically induced coma due to the crash. A police report was filed.
I have a 1999 harley model #flhtcu-I, vin # [xxx].I received a recall on part # 29987-99a a circuit breaker that could open due to reasons other than for which it was designed,causing an unexpected interruption of all electrical power to the motorcycle. I was on vacation when this unexpected interruption occurred.
This could have caused a fire if gasoline was ignited by a hot engine or exhaust pipe.
Rear cam bearing failure. In 08/2006 I purchased a 1999 flhtcui with 6000 miles. Harley did a warranty repair on these motorcycles up to 50000 miles or 5 years. The previous owner did not bring the motorcycle to dealer for repair of defective part.
The cam bearing failed and after delivery to the dealership they told me that the cam bolts had also came loose
While traveling at approximately 65 mph in rush hour engine stalled. Consumer had previously recall work done for 'bank angle sensor' that caused vehicle to stall. Recall remedy failed to rectify defect. Consumer received notification that relates to a fuel tank vent.
Consumer took vehicle in for 7500 mile service prior to taking a trip, while driving consumer experienced difficulty in handling, stopped at a hd dealer and while checking bike they found that the rear tire was dangerously worn, consumer checked the 7500 mile service record which stated that the tires were checked for…
Vehicle electrical system failed causing vehicle to loose all power and the engine to shut down.
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 10,921 of 36,656 model years in the NHTSA data (top 30% most complained about).
On average one model year of the Flhtcui has 8 complaints (13 years in the data). This year has 10, above average.
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Other years of this model
Questions and answers
What are the most common problems with the 1999 Harley-Davidson Flhtcui?
Owner complaints to NHTSA most often mention: engine and cooling, electrical system, fuel system. Total complaints: 10. The most frequent symptoms in complaint texts: stalls while driving (20%), smoke, burning smell, fire (10%).
How many service bulletins (TSB) were issued for the 1999 Harley-Davidson Flhtcui?
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 1999 Harley-Davidson Flhtcui 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 1999 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.