AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 1998 Pontiac Trans Sport
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $5,000–$8,000
The 1998 Pontiac Trans Sport shows several significant issues, particularly with the engine and transmission. Numerous complaints about engine cooling and power train problems, along with multiple recalls on critical systems like fuel and doors, support a below-average reliability rating.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| engine cooling | 70,000–100,000 miles | $500–$1,200 | very common |
| transmission | 80,000–120,000 miles | $800–$2,500 | common |
| power sliding door | 60,000–90,000 miles | $300–$900 | common |
| steering rack | 90,000–130,000 miles | $700–$1,500 | occasional |
| brake lines | 70,000–110,000 miles | $200–$600 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil change every 5,000 miles
- Inspect brakes every 10,000 miles
- Replace timing belt at 90,000 miles
- Coolant flush every 30,000 miles
- Transmission service every 60,000 miles
- Replace spark plugs every 30,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Overheating sign in dashboard
- Strange noises when shifting
- Doors not latching properly
- Vibrations in steering wheel
- Brake fluid leak under vehicle
Generated by gpt-4o on 7/25/2026. Cost ranges are conservative estimates that account for typical regional variation.