1991 Mazda MX-6 Problems: 2 Issues Every Owner Should Know
1991 model year · 220+ owner reports · Updated May 2026
According to Au7o's analysis of 220+ owner reports, the 1991 Mazda MX-6 has 2 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Clutch Slave Cylinder Failure (Manual) with 120 owner reports. Across all issues, repair costs range from $100 to $350. DIY maintenance guides at au7o.io.
All 2 Known Issues
On the 1990-1997 Mazda MX-6, clutch slave cylinder leaks hydraulic fluid causing soft or no clutch pedal. Internal seal deteriorates. Can strand vehicle if complete failure.
Common Symptoms
- Clutch pedal goes to floor
- Soft clutch pedal
- Difficulty shifting
- Fluid leak near transmission
- Clutch does not fully disengage
How to Fix
Replace clutch slave cylinder. Bleed hydraulic system. Consider replacing clutch master cylinder at same time. Use DOT 3 or 4 brake fluid.
What Owners Are Using
Parts and tips from 120+ owners who fixed this issue
- TipReplace master and slave cylinder together — if one leaks the other is likely near failure
- UpgradeMobil 1 75W-90 synthetic gear oil for differential and transfer case (Mobil 1 Synthetic Gear Oil 75W-90)
- UpgradeFel-Pro gasket kit for drivetrain service (Fel-Pro Gasket Kit)
On the 1990-1997 Mazda MX-6, transmission mount breaks causing excessive drivetrain movement, shifting issues, and vibration. Broken mount can also damage shift linkage cables.
Common Symptoms
- Excessive vibration at idle
- Hard shifting
- Clunk when shifting to Drive or Reverse
- Vibration under acceleration
- Shift cable feels loose
How to Fix
Replace transmission mount. Inspect engine mounts at same time — they often fail together.
What Owners Are Using
Parts and tips from 100+ owners who fixed this issue
- TipReplace all mounts as a set if one has failed — the others are likely near failure too
- UpgradeMobil 1 75W-90 synthetic gear oil for differential and transfer case (Mobil 1 Synthetic Gear Oil 75W-90)
- UpgradeFel-Pro gasket kit for drivetrain service (Fel-Pro Gasket Kit)