When to replace the timing belt on a Toyota Sequoia?

The timing belt on a Toyota Sequoia is a critical component that ensures the proper synchronization of the engine's valves and crankshaft. Replacing the timing belt at the recommended intervals is essential to prevent costly engine damage. In this article, we'll provide a detailed guide on when to replace the timing belt on your Toyota Sequoia.

Recommended Timing Belt Replacement Interval

According to Toyota's maintenance guidelines, the timing belt on a Sequoia should be replaced every 90,000 miles or 72 months, whichever comes first. This is a general recommendation, but the actual replacement interval may vary depending on your driving conditions and the specific model year of your Sequoia.

Signs It's Time to Replace the Timing Belt

While the recommended replacement interval is a good guideline, there are also some signs that may indicate it's time to replace the timing belt on your Sequoia, even if you haven't reached the mileage or time threshold:

• Visible cracks or wear on the timing belt: Inspect the belt periodically for any signs of cracking, fraying, or excessive wear. If the belt appears to be in poor condition, it's best to replace it.


• Unusual engine noises: If you hear any unusual noises coming from the engine, such as a high-pitched whining or ticking sound, it could be a sign of timing belt issues.


• Engine misfiring or poor performance: A worn or broken timing belt can cause the engine to misfire, lose power, or run less efficiently.

If you notice any of these signs, it's important to have your Sequoia's timing belt inspected and replaced as soon as possible to avoid potential engine damage.

Timing Belt Replacement Cost

The cost to replace the timing belt on a Toyota Sequoia can vary depending on several factors, such as the specific model year, labor costs in your area, and whether any additional components need to be replaced at the same time (e.g., water pump, tensioner, etc.). On average, you can expect to pay between $500 and $900 for a timing belt replacement on a Sequoia.

Replacing the timing belt at the recommended intervals is a crucial maintenance task for your Toyota Sequoia. By staying on top of this service, you can help prevent costly engine damage and ensure your Sequoia continues to run smoothly for years to come.

What year does Sequoia have a timing chain?

Sequoias produced from 2001 to 2009 with 4.7 V8 engines need to have timing belts changed when the odometer hits 90k miles. Owners of Sequoias from 2008 and beyond with a 5.7 V8 have chains, as do 4.6 V8 Sequoias from 2010 to 2012.

How much does it cost to replace a timing belt on a Toyota Sequoia?

The cost to replace a Toyota Sequoia timing belt typically ranges from $600 to over $1,400, depending on the specific model year and whether other parts like the water pump are replaced at the same time. Costs can vary based on factors like the service center (dealer vs. independent mechanic), your location, and the quality of the parts used. For a more specific estimate, you can check with local mechanics or use online cost calculators for your particular vehicle year.
 
Factors that influence the cost

• Service type: Dealerships may have higher labor rates but often use original equipment manufacturer (OEM) parts, while independent shops might be cheaper but use aftermarket parts. 
• Location: Costs are typically higher in metropolitan areas. 
• Labor time: Replacing the timing belt is labor-intensive, and costs can rise if additional components, such as the water pump, are replaced concurrently. It's often recommended to replace the water pump and other related parts at the same time. 
• Parts included: The final cost depends on whether you are just replacing the belt or a full kit that includes the tensioner, idler pulleys, and the water pump. 

How to get an accurate estimate

• Contact a local mechanic: Get quotes from both dealerships and independent shops to compare prices for your specific model and year. 
• Use online tools: Some websites allow you to get an estimate based on your vehicle's information. 

When to replace the timing belt

• Toyota recommends replacing the timing belt every 90,000–100,000 miles or every seven years, whichever comes first. 
• If your vehicle has over 90,000 miles and the belt has not been replaced, it is a good time to get it inspected. 
• A failing timing belt can cause significant engine damage if it snaps. 

When should the timing belt be replaced on a 4.7 Toyota V8?

The recommended timing belt replacement interval for a Toyota 4.7L V8 engine is every 90,000 miles or 7 years, whichever comes first. Because the 4.7L V8 is an interference engine, the timing belt failing can cause severe engine damage, so following the recommended interval is critical. 
This video explains that the 4.7L V8 engine has a timing belt and explains why it needs to be replaced: 10s1ROADYouTube · Aug 12, 2024
Key points for replacement

• Interval: Replace the timing belt every 90,000 miles or 7 years, as this is the manufacturer's recommendation. 
• Time factor: Time is just as important as mileage. Rubber belts degrade over time due to heat and age, even if they have low mileage. 
• Related components: It is highly recommended to replace the water pump, tensioner, and idler pulleys at the same time as the timing belt to avoid future, separate repairs. 
• Interference engine: The 4.7L V8 is an interference engine, meaning that if the timing belt breaks, the pistons will collide with the valves, causing major and expensive internal engine damage. 

This video explains how long a timing belt lasts on average: 35sCarAraCYouTube · Dec 28, 2023

What are the bad years to avoid Toyota Sequoia?

The Toyota Sequoia years to avoid are primarily the first generation models from 2001 to 2008 due to issues like frame rust, and potential problems with the engine, brakes, and steering. Within the second generation, 2008-2010 models also have specific concerns, such as secondary air injection system issues. 
First generation (2001-2007)

• 2001-2008: These years are frequently cited for being problematic due to a range of defects, including frame rust, steering issues, and engine and brake problems. 
• 2001-2007: Often mentioned for a higher risk of frame rust, especially if you live in an area that uses road salt. 
• 2002: This year stands out as having a high volume of severe complaints, notes CarBuzz. 
• 2003: Multiple recalls and issues with the Vehicle Stability Control system. 
• 2004: Subject to the Takata airbag recall. 
• 2006: Recalled 10 times by the NHTSA. 

You can watch this video to learn about the common problems of the Toyota Sequoia: 55sThe Car Care NutYouTube · Jan 3, 2024
Second generation (2008-2017)

• 2008-2010: These models can have issues with the secondary air injection system, which can be expensive to fix. Early models also had a recall for accelerator pedal friction. 
• 2009: A recall for oil leaks that could lead to a sudden loss of power steering assistance. 
• 2017: Cited as a year to avoid by some sources.