The 2005 Acura RSX features two manual transmission options: a 5-speed manual for the base model and a 6-speed close-ratio manual for the Type-S model. Both transmissions are front-wheel drive with helical gears, synchronized forward gears, and reverse gear synchronization. The 6-speed Type-S transmission includes a limited-slip differential for improved traction. Below are key sections covering specifications, operation, maintenance, troubleshooting, and service procedures.
Key components: Manual transaxle, shift linkage, clutch assembly, limited-slip differential (Type-S only).
| Component | Specification |
|---|---|
| Transmission Type | 5-speed manual (Base) / 6-speed manual (Type-S) |
| Final Drive Ratio | 4.388 (Base) / 4.764 (Type-S) |
| Clutch Type | Hydraulic, single dry disc with diaphragm spring |
| Shift Mechanism | Cable-operated with rod linkage |
| Differential | Open (Base) / Helical limited-slip (Type-S) |
| Fluid Capacity | 1.7L (5-speed) / 1.9L (6-speed) |
| Fluid Type | Honda MTF or equivalent 10W-30 motor oil |
| Weight | Approx. 85 lbs (including fluid) |
| Case Material | Aluminum alloy |
| Synchros | Carbon-lined, multi-cone design |
Gear ratios for both 5-speed and 6-speed transmissions:
| Gear | 5-Speed Ratio | 6-Speed Ratio |
|---|---|---|
| 1st | 3.266 | 3.266 |
| 2nd | 1.900 | 2.130 |
| 3rd | 1.360 | 1.517 |
| 4th | 1.034 | 1.147 |
| 5th | 0.787 | 0.921 |
| 6th | N/A | 0.738 |
| Reverse | 3.583 | 3.583 |
Note: 6-speed transmission features closer ratios for improved acceleration and performance.
Proper shifting techniques and clutch operation:
WARNING! Do not rest hand on shift lever while driving; avoid riding clutch pedal.
Transmission fluid specifications and change intervals:
CAUTION! Use only recommended fluids; incorrect fluid may cause premature wear.
Routine maintenance procedures and intervals:
| Service Item | Interval | Procedure |
|---|---|---|
| Fluid Check | Every 7,500 miles | Inspect fluid level and condition |
| Fluid Change | 30,000 miles | Drain and refill with new fluid |
| Clutch Adjustment | 15,000 miles | Check pedal free play (0.4-0.8 inches) |
| Shift Linkage | 30,000 miles | Lubricate and inspect for wear |
| Transmission Mounts | 60,000 miles | Inspect for cracking or deterioration |
Common transmission issues and solutions:
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Difficulty shifting | Low fluid, worn synchros | Check fluid level; inspect synchro rings |
| Grinding noise | Worn clutch, damaged gears | Inspect clutch assembly; check gear teeth |
| Transmission leaks | Seal failure, case damage | Replace seals; repair case if cracked |
| Vibration in gear | Worn mounts, unbalanced components | Inspect mounts; check driveshaft balance |
| Stuck in gear | Shift linkage binding | Lubricate and adjust shift linkage |
Basic service and repair instructions:
WARNING! Use proper jack stands; transmission is heavy and requires lift equipment.
Original warranty coverage and limitations:
For technical assistance and service information:
Acura Client Service: 1-800-382-2238
Acura Website: www.acura.com
Technical Service Bulletins: Available through Acura dealerships
Parts Department: Contact local Acura dealer for genuine parts
Note: Always use genuine Acura parts for repairs to maintain performance and warranty coverage.