1986 Pontiac Fiero Manual Transmission

The 1986 Pontiac Fiero features a 5-speed manual transmission as standard equipment, providing sporty driving dynamics and enhanced control. This mid-engine sports car utilizes a Getrag-designed manual gearbox with hydraulic clutch operation, offering smooth shifting and reliable performance. Below are key sections covering specifications, operation, maintenance, troubleshooting, and technical details.

Transmission Specifications

The 1986 Fiero manual transmission is a 5-speed unit with synchronized forward gears and reverse lockout feature.

Operation Guidelines

Proper shifting technique ensures longevity and smooth operation.

1. Start engine with clutch pedal fully depressed.
2. Shift smoothly without forcing the gear lever.
3. Use clutch fully when shifting; avoid riding the clutch pedal.
4. Reverse gear requires lifting reverse lockout collar.
5. Downshift progressively when slowing down.

WARNING! Do not rest hand on shift lever while driving as this can cause premature wear.

Maintenance Schedule

Regular maintenance ensures optimal transmission performance.

1. Check transmission fluid level every 15,000 miles.
2. Change transmission fluid every 30,000 miles or 2 years.
3. Inspect clutch hydraulic system every 25,000 miles.
4. Check shift linkage for wear every 20,000 miles.
5. Lubricate shift linkage points every 15,000 miles.

CAUTION! Use only recommended transmission fluids to prevent damage.

Fluid Requirements

• Recommended Fluid: GM Manual Transmission Fluid 12345349 or equivalent
• Alternative: Dexron III Automatic Transmission Fluid acceptable
• Capacity: 2.2 quarts (2.1 liters) when dry
• Change Interval: 30,000 miles or 2 years
• Check Procedure: Remove fill plug on side of transmission case
• Fluid Level: Should be at bottom of fill hole threads

Clutch System

Hydraulic clutch system with master cylinder, slave cylinder, and clutch disc.

Components: Clutch pedal, master cylinder, hydraulic line, slave cylinder, release bearing, pressure plate, clutch disc.

Operation: Depressing clutch pedal activates master cylinder, sending hydraulic pressure to slave cylinder which disengages clutch via release bearing. Clutch pedal free play should be 0.5-1.0 inches. Bleed system if pedal feels spongy. Clutch disc replacement typically needed at 60,000-100,000 miles depending on driving habits.

Shift Linkage Adjustment

Proper shift linkage adjustment ensures precise gear engagement.

1. Place transmission in neutral position.
2. Loosen shift linkage adjustment bolts.
3. Center shift lever in neutral gate.
4. Tighten adjustment bolts to specification.
5. Test shift through all gears including reverse.

Tip: Worn linkage bushings can cause vague shifting and should be replaced.

Common Issues

Typical manual transmission problems and their characteristics.

1. Difficulty shifting into gear: Worn synchronizers or low fluid
2. Grinding noises: Damaged synchronizers or improper clutch adjustment
3. Jumping out of gear: Worn detents or shift linkage issues
4. Fluid leaks: Worn seals or damaged case
5. Vibration: Worn engine/transmission mounts or unbalanced components
6. Noisy operation: Worn bearings or insufficient lubrication

WARNING! Continuing to drive with transmission problems can cause extensive damage.

Troubleshooting

Professional Service: Complex internal repairs should be performed by qualified technicians.

Technical Diagrams

Reference exploded views and component layouts for service procedures.

• Transmission cross-section showing gear arrangement
• Shift linkage routing and adjustment points
• Clutch hydraulic system schematic
• Transmission mount locations and specifications
• Drive axle connection points and CV joints

Note: Complete technical manual available from GM dealerships.

Warranty Information

Original warranty coverage and current support availability.

1986 Pontiac Fiero manual transmission covered by GM's 12-month/12,000-mile limited warranty when new. Current parts availability through GM Classic Parts program. Some components may require special ordering. Reproduction parts available through specialty suppliers.

Service Contacts

For technical support and parts information:

Note: Many independent specialists now service Fiero transmissions.