1990 Mazda MPV Problems: 1 Issues Every Owner Should Know
1990 model year · 140+ owner reports · Updated April 2026
According to Au7o's analysis of 140+ owner reports, the 1990 Mazda MPV has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Alternator Premature Failure with 140 owner reports. Across all issues, repair costs range from $250 to $600. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 1990-2006 Mazda MPV, alternator fails prematurely due to heat exposure from exhaust proximity. Battery drains and warning lights come on. Can strand vehicle if battery goes flat.
Common Symptoms
- Battery light on dashboard
- Dim headlights
- Battery dies overnight
- Electrical accessories intermittent
- Whining noise from alternator
How to Fix
Replace alternator. Install heat shield if available. Check serpentine belt and tensioner at same time.
What Owners Are Using
Parts and tips from 140+ owners who fixed this issue
- TipReplace serpentine belt and tensioner when replacing alternator — they are all at end of life at the same time
- UpgradeHigh-performance AGM battery with excellent cold cranking amps and deep cycle capability (Optima RedTop AGM Battery)
- UpgradeOEM-quality replacement battery with reliable performance (ACDelco Professional AGM Battery)
- UpgradeAutomatic battery maintainer to prevent parasitic drain issues during storage (Battery Tender Junior 12V Battery Charger Maintainer)
- UpgradeOEM-quality remanufactured alternator with high output for reliable charging (Denso Remanufactured Alternator)
- UpgradePremium rebuilt alternator backed by extensive warranty coverage (Remy Premium Remanufactured Alternator)