Skip the auto shop - Our mechanics make house calls

Q: 2006 Lexus V8. Should I spend $900 to replace timing belt at this low milage?

asked by on

Recently purchased a near perfect SC430 Lexus. Always heard that Lexus engines should last at least 100,000 miles before needing serious attention. Is the dealers service manager just trying to drum up business? Ten year old car only 39,000 miles. What will happen to engine if timing belt fails? Will it ruin engine? TAS

My car has 39000 miles.
My car has an automatic transmission.

Hi there. As a former Lexus Master technician, there is an not only a mileage change interval for the timing belt, but also an age interval of 8 years. This is what is suggested in the original owner’s manual.

The age/time change interval is due to the fact that the rubber in the belt doesn’t last forever and can become brittle and crack. A timing belt failure in this engine would be catastrophic as this is an interference engine. This means that, if the belt breaks, then the pistons will strike the valves resulting in severe engine damage. The service manager there isn’t just trying to drum up business, he was within ethical rights to offer the timing belt service.

However, theses vehicles are also known to have water pump leaks due to age as well. It’s a hit or miss with the water pump, and the technician usually will not know until he has the front of the engine torn down to replace the timing belt. If you would like to have a second opinion on the car, a local expert from YourMechanic can come to your car’s location to inspect the vehicle and advise you on any work that is needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • 2006 Lexus V8. Should I spend $900 to replace timing belt at this low milage?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I was driving and when I tried to make a turn my steering wheel was hard to turn. Soon after my car cut off.

Hello. It is very possible that the timing belt broke or the engine seized. I would usually check the oil level first. If it is empty then there is a serious issue. If there is oil then I would try...

Q: 2012 Buick Verano steering feels like it is locking up.

Hey there, I'm sorry to hear about the problems with your 2012 Buick Verano. This vehicle should have an electronic power steering system, which can be a problem when there are faulty electrical connections, worn out wiring, etc. I would...

Q: Car clicking and not starting

Low voltage is one of the main causes for a starter solenoid to click continuously without turning the engine over. An electromagnet pulls the contacts together in the solenoid. As soon as contact is made and the starter motor is...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.