1995-1999 Mitsubishi Eclipse Clutch Slave Cylinder Replacement Guide
Having trouble shifting or dealing with a spongy clutch pedal? Your clutch slave cylinder might be the culprit.
- Symptoms include a spongy pedal, difficulty shifting, and fluid leaks near the transmission.
- It is highly recommended to replace the master cylinder and slave cylinder at the same time.
- Exedy is considered an OEM-quality replacement for this vehicle.
- The system must be properly bled of all air after replacement for the clutch to function correctly.
Symptoms of a Failing Clutch Slave Cylinder
A bad clutch slave cylinder on a 2G Eclipse will make itself known. The most common sign is a clutch pedal that feels soft, spongy, or goes straight to the floor with little resistance. You might also find it difficult to shift into gear, or the transmission may grind when you try. Look for fluid leaks on the front of the transmission where the slave cylinder is mounted; it will look like brake fluid. If the fluid level in the clutch master cylinder reservoir keeps dropping, you likely have a leak in the system.
Master vs. Slave Cylinder
The master and slave cylinders often wear out around the same time. Many experienced owners and mechanics recommend replacing both at the same time to avoid having to bleed the system twice. 🎬 Watch: Diagnosis and replacement guide for both clutch cylinders. A failing master cylinder can cause similar symptoms, like a pedal that drops to the floor.
Choosing the Right Aftermarket Slave Cylinder
For the 1995-1999 Eclipse, you have several good aftermarket options. You don't necessarily need to pay for a genuine OEM part to get good quality.
Premium Brands: OEM Quality or Better
- Exedy: Exedy is a well-respected original equipment manufacturer for many Japanese car brands, including Mitsubishi. Their slave cylinders are considered a top-tier replacement, often identical to the part that came from the factory.
- LuK & Sachs: These are also trusted OEM suppliers known for high-quality hydraulic components that meet or exceed factory specifications. They are an excellent choice for a reliable, long-lasting repair.
Standard / Value Brands
- Beck Arnley: This brand sources parts from various manufacturers, often providing OEM-quality components in their box. They are a solid mid-tier option.
- Dorman: Dorman offers a direct-fit, affordable replacement. While their quality can sometimes be inconsistent according to forum discussions, their clutch hydraulic parts are generally considered reliable for daily use.
- Replacement: This is a budget-friendly option for owners who need to get their car back on the road without spending a lot. It will function correctly but may not have the same long-term durability as premium brands.
Pro Tip: Check the Whole System
While you're replacing the slave cylinder, it's a great time to inspect the flexible clutch line. Over time, these rubber hoses can fail internally, acting like a one-way valve and causing engagement problems. Upgrading to a stainless steel braided line is a popular and durable modification for 2G Eclipse owners.
Cost of Replacing a Clutch Slave Cylinder
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Slave Cylinder | $10.13 - $68.15 |
| Shop Labor | $75 - $150 |
| Total Estimated Cost | $85 - $220 |
Frequently Asked Questions
Is it hard to replace the clutch slave cylinder on a 95-99 Eclipse?
No, it's one of the easier jobs on this car. The slave cylinder is mounted externally on the front of the transmission and is held in place by two bolts. 🎬 See this step-by-step walkthrough for the non-turbo Eclipse. The most challenging part of the job is properly bleeding the air out of the hydraulic system afterward.
What kind of fluid do I use for the clutch?
The clutch hydraulic system uses brake fluid, typically DOT 3 or DOT 4. Always check your vehicle's service manual or the cap on the reservoir to be sure. Never use any other type of fluid.
My pedal is stuck on the floor. Is it the slave cylinder?
It could be. A pedal that drops to the floor and stays there indicates a loss of hydraulic pressure. This can be caused by a failed slave cylinder, a failed master cylinder, or a leak in the line connecting them. It's best to inspect the entire system for leaks to find the source of the problem.
Do I need to bleed the clutch after replacing the slave cylinder?
Yes, absolutely. Any time the hydraulic system is opened, air gets in. You must bleed the system to remove all the air, or the clutch pedal will not work correctly. This involves opening a bleeder valve on the slave cylinder while a helper presses the clutch pedal.
🎬 Learn how to bleed your clutch system without a helper.Helpful Videos
Technical Specifications
OEM Part Numbers: MD749822 MD749823 MD740318 MD742157 MD742158
Bore Size: 13/16 in. (or 0.81 in.)
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Mitsubishi Eclipse:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Symptoms of a Failing Clutch Slave Cylinder
- Master vs. Slave Cylinder
- Choosing the Right Aftermarket Slave Cylinder
- Premium Brands: OEM Quality or Better
- Standard / Value Brands
- Pro Tip: Check the Whole System
- Cost of Replacing a Clutch Slave Cylinder
- Frequently Asked Questions
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