Acura TSX 6 Speed Manual Transmission

The Acura TSX 6-speed manual transmission is a precision-engineered gearbox designed for optimal performance and driving engagement. Featuring smooth shift action, close-ratio gearing, and durable construction, this transmission delivers responsive power delivery and enhanced driving dynamics for the Acura TSX sports sedan. Below are key sections covering specifications, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Transmission Specifications 3. Operation Guidelines 4. Maintenance Schedule 5. Fluid Requirements 6. Shift Pattern 7. Common Issues 8. Performance Tips 9. Warranty Information 10. Technical Support 11. Troubleshooting

Features at a Glance

Key components: 6-speed manual gearbox, short-throw shifter, helical-cut gears, synchronizer rings, clutch assembly, and shift linkage.

Feature	Description
Gear Ratios	Close-ratio design for optimal acceleration
Shift Mechanism	Short-throw shifter for precise gear changes
Synchronizers	Multi-cone synchronizers for smooth engagement
Clutch Type	Hydraulic clutch with self-adjusting mechanism
Construction	Aluminum housing for reduced weight
Lubrication	Factory-filled with Honda MTF
Shift Feel	Crisp, positive engagement with minimal play
Durability	Designed for high-performance driving
Compatibility	TSX models 2004-2008 with 2.4L K24 engine
Reverse Lockout	Prevents accidental engagement of reverse gear

Transmission Specifications

Type: 6-speed manual, front-wheel drive
Gear Ratios: 1st: 3.266, 2nd: 1.900, 3rd: 1.360, 4th: 1.034, 5th: 0.829, 6th: 0.658, Reverse: 3.583
Final Drive: 4.388:1
Fluid Capacity: 2.2 quarts (2.1 liters)
Fluid Type: Honda Manual Transmission Fluid (MTF)
Shift Pattern: H-pattern with reverse left and up
Clutch Type: Single dry disc, hydraulic operation
Weight: Approximately 85 lbs (38.5 kg)
Case Material: Aluminum alloy

Operation Guidelines

Proper shifting technique ensures longevity and optimal performance.

Clutch Operation: Depress clutch fully before shifting; release smoothly.
Shifting: Use firm, deliberate movements; avoid forcing gears.
Rev Matching: Practice rev-matching for smoother downshifts.
Cold Operation: Allow transmission to warm up in cold weather.
Reverse Gear: Come to complete stop before engaging reverse.

WARNING! Do not rest hand on shifter while driving; this can cause premature wear.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Fluid Change: Replace transmission fluid every 30,000 miles or 2 years.
Clutch Inspection: Check clutch wear every 60,000 miles.
Shift Linkage: Lubricate shift linkage every 15,000 miles.
Clutch Fluid: Check and replace brake fluid (shared system) every 3 years.
Mounts Inspection: Check transmission mounts for wear every 30,000 miles.

CAUTION! Use only specified Honda MTF; incorrect fluid can damage synchronizers.

Fluid Requirements

Recommended Fluid: Honda Manual Transmission Fluid (MTF)
Alternative: Acura/Honda MTF only - no substitutes
Capacity: 2.2 quarts (2.1 liters) for complete refill
Change Interval: 30,000 miles or 2 years, whichever comes first
Drain Plug: Magnetic plug to capture metal particles
Fill Plug: Located on driver's side of transmission case
Fluid Color: Amber when new, darkens with age
Warning Signs: Grinding noises, difficult shifting indicate fluid issues

Shift Pattern

Standard H-pattern with reverse lockout mechanism.

R
1	3	5

2	4	6

Reverse Engagement: Depress clutch, move shifter left beyond spring pressure, then up.

Note: Vehicle must be stationary to engage reverse gear.

Common Issues

Typical problems and their indications.

Grinding Gears: Worn synchronizers or low fluid level
Difficulty Shifting: Contaminated fluid or clutch issues
Shifter Vibration: Worn shift linkage or transmission mounts
Noise in Neutral: Worn input shaft bearing
Fluid Leaks: Damaged seals or overfilled transmission
Popping Out of Gear: Worn detents or shift forks

Tip: Address issues promptly to prevent further damage.

Performance Tips

Enhance your driving experience with proper technique.

Short Shifting: Shift at lower RPMs for better fuel economy
Heel-Toe: Practice heel-toe downshifting for track use
Clutch Control: Smooth engagement prevents drivetrain shock
Warm Up: Allow transmission to reach operating temperature
Regular Fluid Changes: Maintains optimal shift quality

WARNING! Avoid aggressive shifting when transmission is cold.

Warranty Information

Standard warranty coverage for transmission components.

Basic Warranty: 4 years/50,000 miles from purchase date
Powertrain Coverage: Includes transmission and related components
Exclusions: Clutch wear items, fluid changes, abuse damage
Transferable: Yes, to subsequent owners
Service Requirements: Maintain proper maintenance records
Claims Process: Contact Acura dealer for warranty assessment

Technical Support

Acura client services and technical assistance.

For technical support, contact Acura Client Services at 1-800-382-2238 or visit www.acura.com. Have your VIN ready when calling. Authorized Acura dealers can provide diagnostic services and genuine replacement parts. Technical service bulletins available through dealer network.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Grinding when shifting	Low fluid/worn synchros	Check fluid level; replace if contaminated; inspect synchronizers
Difficulty engaging gear	Clutch issues/fluid	Check clutch hydraulic system; bleed if necessary; replace fluid
Shifter feels loose	Worn linkage/bushings	Inspect shift linkage; replace worn bushings and components
Transmission noise	Bearing wear/gear damage	Professional diagnosis required; may require transmission rebuild
Fluid leaks	Seal damage/case cracks	Identify leak source; replace seals; repair case if damaged
Popping out of gear	Worn detents/forks	Internal transmission repair required; professional service needed

Service: 1-800-382-2238; www.acura.com