Vehicle Data Hub

1999 Hyundai Sonata engine problems

Owners reported engine problems in 23 complaints for the 1999 Hyundai Sonata, 12% of the complaints on file. It is the 3rd most reported problem area for this model year.

At a glance

Complaints
23 12% of this year's complaints
Typical mileage
89,000 miles 11 complaints with mileage
Crashes and fires
3 and 1
Injuries and deaths
4 and 0

Source: NHTSA owner complaints

When engine problems show up

Engine complaints by mileage, 1999 Hyundai Sonata Complaints by odometer reading in 20,000-mile steps. The median is about 89,000 miles. 0k to 20k miles: 0 complaints 20k to 40k miles: 0 complaints 40k to 60k miles: 5 complaints 60k to 80k miles: 0 complaints 80k to 100k miles: 2 complaints 100k to 120k miles: 1 complaints 120k to 140k miles: 2 complaints 140k to 160k miles: 0 complaints 160k to 180k miles: 1 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 89,000 miles
Based on 11 complaints that include mileage. 45% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles0
20k to 40k miles0
40k to 60k miles5
60k to 80k miles0
80k to 100k miles2
100k to 120k miles1
120k to 140k miles2
140k to 160k miles0
160k to 180k miles1
180k to 200k miles0
200k+ miles0

What the data shows

Of the 11 engine complaints that report mileage, the median is about 89,000 miles, and 45% were reported before 60,000 miles.

These complaints mention 3 crashes, 1 fire, 4 injuries.

What owners wrote

Tl* the contact owns a 1999 hyundai sonata. The contact received repairs under NHTSA campaign id number: 09v124000 (suspension). The vehicle was taken to a local mechanic because the motor was excessively loud after the recall repair. In addition, the contact stated the vehicle would sway back and forth, the motor would jump abnormally and the steering would intermittently become hard. The contact was advised by the mechanic that the motor mounts were loose and to take the vehicle back to the dealer for repairs.

Reported at 125,633 miles, October 2009 CrashInjury

When the check engine light illuminated, vehicle ran sluggish, and then stalled. The dealer replaced the oxygen sensors four times within the last three years. The problem was still occurring and happened more frequently. Based on consumers assumption, the vehicle was having the same problems as described in NHTSA recall 00v259001 concerning stalling. This vehicle was not included in the recall due to VIN.

Reported at 48,000 miles, January 1901

Other problems reported for the 1999 Hyundai Sonata

Engine problems in other years

Engine problems across all Hyundai models