Clicking noise when turning due to CV axle 2000 Toyota Mr2

If your 2000 Toyota Mr2 has developed a distinct clicking or popping noise, especially when you're turning sharply at low speeds, you're likely experiencing a common issue related to a worn Constant Velocity (CV) axle. This sound can be unsettling, but it's a clear indicator that attention is needed to prevent further damage and ensure safe driving. Understanding the unique layout of your mid-engine, rear-wheel-drive Mr2 is crucial for proper diagnosis.

What drivers notice on this 2000 Toyota Mr2

Owners of a 2000 Toyota Mr2 often report a rhythmic clicking, popping, or sometimes even a clunking sound. Unlike many front-wheel-drive vehicles where CV axles are in the front, your Mr2's CV axles are located at the rear wheels. This means the noise will typically emanate from the rear of the vehicle when performing maneuvers like:

• Turning sharply in a parking lot
• Making U-turns
• Accelerating from a stop with the steering wheel turned
• Driving slowly around corners

The sound usually becomes more pronounced under load, such as when accelerating through a turn, and may disappear or become less noticeable when driving straight or at higher speeds.

At a glance: difficulty, repair cost, and diagnostic workflow

• Difficulty Rating: 6/10 — Moderate
• Common Symptoms: Rhythmic clicking or popping noise: The most common symptom, especially noticeable when turning.; Grease leakage: Visible grease stains on the inside of the wheel, suspension components, or brake calipers, indicating a; Vibration during acceleration: A slight to moderate vibration felt through the floorboard or steering wheel, which can w; Clunking noise: A single clunk when shifting from drive to reverse or vice-versa, or when accelerating or decelerating s
• Estimated Repair Cost: $100–$900 (parts + typical shop labor)
• OEM Tooling Required: Standard OBD-II scanner and hand tools

Diagnostic workflow:

1. Confirm the symptom on your vehicle.
2. Scan for stored or pending codes with an OBD-II tool.
3. Inspect the most common causes in this guide (visual checks first).
4. Run verification tests before replacing parts.
5. Repair, clear codes, and verify on a test drive.

Symptoms and warning signs

Beyond the primary clicking noise, a failing CV axle can present several other symptoms that indicate its condition is deteriorating:

• Rhythmic clicking or popping noise: The most common symptom, especially noticeable when turning.
• Grease leakage: Visible grease stains on the inside of the wheel, suspension components, or brake calipers, indicating a torn CV boot.
• Vibration during acceleration: A slight to moderate vibration felt through the floorboard or steering wheel, which can worsen as the axle wears.
• Clunking noise: A single clunk when shifting from drive to reverse or vice-versa, or when accelerating or decelerating suddenly.
• Loss of power or shuddering: In severe cases, a completely failed CV joint can lead to a significant loss of power to the wheel or a violent shuddering sensation.

How to verify and confirm the issue

Confirming a CV axle issue in your 2000 Toyota Mr2 involves a combination of observation and physical inspection:

• Test Drive: Find a safe, open area like an empty parking lot. Drive slowly in tight circles, both to the left and to the right, listening carefully for the clicking noise. Accelerate gently through the turns to put load on the axles. Note which side the noise seems to come from.
• Visual Inspection of CV Boots: Safely lift and support the rear of your Mr2. Remove the rear wheels. Carefully inspect both the inner and outer CV boots on each rear axle. Look for:
  • Tears, cracks, or splits in the rubber boots.
  • Signs of grease flung out from the boot onto surrounding components.
  • Any signs of impact damage to the boots or axle shaft.
• Check for Play in the Joint: With the car still safely lifted and the wheel off, try to grasp the axle shaft and gently rock it up and down, and side to side. Excessive play or movement in the joint can indicate wear. Also, try to rotate the shaft while holding the wheel hub stationary (or vice-versa) to feel for looseness.
• Differentiate from Wheel Bearings: While less common to manifest as clicking when turning, a worn wheel bearing can also make noise. Wheel bearing noise is typically a hum or grind that changes with vehicle speed and often worsens when turning in one direction as weight shifts, but it usually doesn't present as a distinct click or pop.

Common causes (most likely first)

The primary reason for a CV axle to develop a clicking noise is almost always related to the integrity of its protective boots:

• Damaged CV Boot: This is the most prevalent cause. The rubber boots are designed to keep lubricating grease inside the CV joint and prevent contaminants like dirt, water, and road debris from entering. Over time, these boots can crack, tear, or become loose due to age, wear, or impact. Once compromised, the grease escapes, and foreign material enters, leading to rapid wear of the internal components of the CV joint.
• Worn CV Joint: Once the boot is damaged, the CV joint itself quickly wears out due to lack of lubrication and abrasive contamination. This wear creates excessive play within the joint, causing the clicking or popping sound as the internal components (bearings, cage, races) bind and release during articulation, especially when turning.
• High Mileage/Age: Even without boot damage, CV joints can simply wear out over very high mileage due to continuous stress and friction.
• Improper Installation: If a CV axle was previously replaced, improper installation or the use of low-quality aftermarket parts could lead to premature failure, though this is less common for original equipment issues.

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Step-by-step diagnosis and fixes

Addressing a clicking CV axle requires careful diagnosis and, typically, replacement of the affected part.

• Safety First: Always use proper jack stands to support your 2000 Toyota Mr2 securely when working underneath it. Never rely solely on a jack.
• Locate the Noise: Based on your test drive, try to pinpoint whether the noise is coming from the left rear or right rear wheel area.
• Detailed Inspection: With the rear wheels removed, perform a thorough visual inspection of both inner and outer CV boots on each axle. Look for any tears, cracks, or grease leakage. If a boot is torn, it's highly probable the joint is already compromised.
• Check for Play: With the vehicle safely lifted, try to rotate the wheel hub while holding the axle shaft, and vice-versa. Feel for any excessive play or looseness within the joint. Also, try to move the axle shaft itself to detect any slop.
• Consider Replacement: If a CV boot is torn and you hear the clicking noise, the CV joint is almost certainly damaged. While it's technically possible to replace just a boot and regrease the joint, this is usually only effective if the boot was caught very early, before any noise started. For a clicking joint, replacing the entire CV axle assembly (which includes both inner and outer joints and the shaft) is the most reliable and recommended long-term solution. For more general repair advice, you can always consult our All repair guides.

Repair options and cost factors

When dealing with a clicking CV axle in your 2000 Toyota Mr2, you generally have two main repair options:

• CV Boot Replacement (Rarely Recommended for Clicking Joints): This involves removing the axle, cleaning and repacking the existing joint with new grease, and installing a new boot. This is only a viable option if the boot is torn but the joint itself is still in good condition and has not yet started to click or show signs of wear. Once the clicking begins, the joint is already damaged, and a boot replacement alone will not fix the noise.
• CV Axle Assembly Replacement (Most Common Solution): This is the most straightforward and effective repair for a clicking CV axle. It involves replacing the entire axle shaft, including both the inner and outer CV joints. This ensures you have a completely new, lubricated, and sealed unit. This is the recommended approach when a CV joint is making noise.

Cost factors will vary based on:

• Parts: OEM (Original Equipment Manufacturer) axles are typically more expensive but offer guaranteed fit and quality. Aftermarket axles can be more budget-friendly but vary in quality. Remanufactured axles are another option.
• Labor Rates: The cost of labor will depend on your mechanic's hourly rate and the time required for the job, which typically involves removing the wheel, brake caliper, rotor, and disconnecting suspension components to remove and replace the axle.
• Number of Axles: If both rear axles are showing signs of wear, replacing both at the same time might be more economical in terms of labor.

When to see a professional

While diagnosing a clicking CV axle can be done by a skilled DIY enthusiast, there are several situations where consulting a professional technician is highly advisable:

• Uncertainty in Diagnosis: If you're unsure whether the noise is coming from the CV axle, wheel bearing, or another suspension component, a professional can accurately pinpoint the source.
• Lack of Proper Tools: Replacing a CV axle requires specific tools, including a torque wrench, jack stands, and potentially a press for some components. If you don't have these, professional help is safer.
• Safety Concerns: Working on suspension and drivetrain components can be dangerous if not done correctly. A professional ensures the vehicle is safely supported and all components are torqued to factory specifications.
• Persistent Issues: If you've attempted a repair and the noise persists or new issues arise, a qualified mechanic can provide a comprehensive solution. To find a shop that works on your vehicle, you can browse vehicles on our site for local service options at Browse vehicles.

Frequently asked questions

Can I drive my 2000 Toyota Mr2 with a clicking CV axle?

While you might be able to drive your Mr2 for a short period with a clicking CV axle, it's not recommended for long. The clicking indicates internal damage to the joint, which can worsen over time. A severely damaged CV joint can eventually fail completely, potentially causing you to lose power to the wheel or even lose control of the vehicle, creating a dangerous situation.

How long do CV axles typically last on a Toyota Mr2?

On a 2000 Toyota Mr2, original CV axles are designed to last the life of the vehicle, often exceeding 100,000 to 150,000 miles or more under normal driving conditions. However, their lifespan is highly dependent on the integrity of the CV boots. If a boot tears, the joint's life can be drastically shortened, sometimes failing within a few thousand miles.

What's the difference between inner and outer CV joints on a 2000 Mr2?

The 2000 Toyota Mr2's rear axles each have two CV joints: an inner joint and an outer joint. The inner CV joint connects the axle shaft to the transaxle (transmission/differential assembly) and typically handles more plunging motion. The outer CV joint connects the axle shaft to the wheel hub and allows for greater angular movement as the wheel moves up and down with the suspension and steers (though less so on the non-steering rear wheels of the Mr2). Both are critical for power transfer and smooth operation.

Sources and further reading

Consult your Toyota Mr2's factory service manual for detailed specifications and repair procedures. Online automotive forums and technical service bulletins (TSBs) can also provide additional insights into common issues and recommended fixes for your specific model.

This information is for general guidance only and is not a substitute for OEM service procedures; always use a qualified technician for safety-critical work.

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