All Lexus RX350 engines have timing chains from the model years 2007 to 2021. From 2007 through 2021, every Lexus RX350 engine is interference.
In a combustion engine, the timing belt (or chain) maintains the correct synchronization between the various engine parts.
Serious engine damage may result if the belt or chain strains or breaks.
Timing chains are typically rated for the lifespan of the engine, while timing belts have a suggested replacement interval, however they do need to be inspected on occasion.
Understanding the timing system in your car or a potential purchase can help you avoid future costs and hassles.
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In This Article...
Is there a timing belt or chain on a Lexus?
When should the timing belt on my Lexus be changed or replaced? Timing belts are essential, but unless specifically advised to do so in your Lexus owner’s manual, there is no need to replace them frequently. Between 60,000 and 100,000 miles, some automakers advise changing the timing belt, while others don’t.
How much does a Lexus timing chain replacement cost?
The Best in Auto Repair estimates labor expenses at $2,025 to $2,554 and parts costs at $394 to $401. Taxes and other fees are not included in this range, nor are your particular model year or geographic area taken into account.
A timing belt or chain is present in a 2008 Lexus RX 350.
The 2008 Lexus RX 350s have chains instead of timing belts. By the 2007 Lexus RX350s, timing belts were replaced with chains.
The timing belt on a Lexus RX 350 is it present?
The engine uses timing belts to maintain synchronization between the crankshaft and camshaft movements. Timing belts are constructed of heavy rubber that eventually deteriorates and needs to be replaced.
The 2013 Lexus RX 350, however, makes use of a timing gear. Timing gears are formed of thick metal and provide the same function as timing belts without needing to be replaced.
Follow the recommended maintenance schedule in the owner’s manual or consult a dependable mechanic to maintain your Lexus in top condition.
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Which is superior, timing belts or chains?
Timing belts typically last less time than timing chains. Timing belts are made of rubber, which isn’t as strong as metal, but chains are made of metal, and this is the simple explanation for why this is the case. Timing belts are not weak, but they will probably need to be replaced at some point, whereas a chain can last the lifetime of the car.
Timing belts typically need to be replaced in the mileage range of 55,000 miles (about 90,000 km) and 90,000 miles (roughly 150,000 km). Therefore, a timing belt is still a very reliable and significant component of your car.
Whether your car has a timing chain or belt, it’s critical that you watch for any symptoms of wear and strain and take appropriate action. Depending on the sort of engine you have, a broken timing belt can have disastrous results. You could be better off searching to get a new vehicle if the repairs are too expensive to be practical.
A 2013 Lexus ES 350’s timing chain, is it present?
Timing belts are absent from the 2013 Lexus ES350 in favor of a timing chain. This is viewed favorably because timing chains are frequently warrantied for the duration of the life of the car.
What signs or symptoms point to a timing chain failure?
symptoms of a defective timing chain
- When the engine is running or idles, there is a rattle. Unusual rattling noises when the engine is started or when the brakes are applied are a common sign that a timing chain in a car is damaged.
- Engine Misfire.
- Engine oil with contamination.
- Check Engine indicator.
- not being able to start the engine.
What does it cost to replace a timing chain?
Being proactive is a good thing because an engine that has a broken timing chain could suffer significant damage.
Timing chain replacement might cost between $600 and $800 to do it yourself or $1,600 to $1,800 to have a technician do it. Due to how difficult it is to replace this element, the price is exorbitant.
The parts for a DIY timing chain replacement will run you about $650. But this is a job that’s best left to mechanics with a lot of experience.
Fortunately, timing chains are built to endure the lifespan of the vehicle, unlike rubber timing belts, thus it is rare that you will need to have it changed. Watch out for these signs if you think your timing chain may be broken:
- The check engine light is on.
- Engine has poor performance or is misfiring
- Starting the car is challenging.
- While idling, the engine shakes or vibrates
- Noisy timing chain
If some of these symptoms are persistent, bring your car to a repair as soon as possible. Quickly addressing the problem will stop further harm to your car.
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Does it make sense to swap out a timing chain?
The stretched chain’s rattling or clattering sound may also grow bothersome. This sound will be noticeable with the hood open and will vary depending on engine rpm. A broken timing chain may bounce around on the crankshaft and camshaft gears, making noises from the front of the engine such as rattling and knocking, or it may strike the timing chain cover. On some engine models, severe failures caused by a broken timing chain will cause the valves to come into contact with the pistons, causing very loud knocking and banging noises, catastrophic engine failure, and damage to the valves and pistons.
Broken plastic timing guide and metal shaving
If your timing chain is worn out, little metal pieces may come loose and land in the oil pan. When you get your oil changed, if your mechanic finds tiny metal fragments in the oil as it is being drained or in the filter, it may indicate that your timing chain is beginning to fail. However, a number of additional problems could lead to metal shavings in the oil. Contact your manufacturer or service provider as soon as you notice metal in your oil for an inspection, accurate diagnosis, and suitable repair.
Lack of power
A timing chain that has stretched enough to skip a few teeth on the sprocket prevents the combustion chambers from drawing in the requisite amount of fuel and air mixture because the valves are not opening and closing at the appropriate timings. As a result, there is a significant loss of power and the engine is less sensitive to input from the accelerator pedal.
Timing related codes
The variable valve timing system enhances engine performance and fuel efficiency by managing the opening and closing of the intake and exhaust valves. Oil control valves, sometimes referred to as solenoid valves and VVT (variable valve timing control) valves, are used by the ECM to regulate the camshaft(s).
Timing-related faults have a significant impact on your car’s ability to be driven. The most frequent problems are an increase in engine stalling, a rough idle, poor fuel economy, and rattling or knocking noises coming from the engine. The internal engine components may suffer substantial harm if the car is driven further in this state.
The Bottom Line
The timing chain is a crucial part of every engine; without it, your car wouldn’t run. Your car’s engine is likely to sustain severe harm if your timing chain snaps while you’re driving. The safest approach to prevent serious engine damage if you see any of the danger signs mentioned above is to get your timing chain replaced by a qualified repair. Being proactive and knowledgeable could help you save thousands of dollars and significantly extend the life of your engine.
When should a Lexus RX350’s timing belt be replaced?
Every 60,000100,000 miles, several manufacturers advise replacing the timing belt as part of routine maintenance.
How frequently should a Lexus RX 350 have its oil changed?
For traditional oil, Lexus advises having your 2021 Lexus RX 350’s oil and filter replaced every 3,000-5,000 miles. Generally speaking, synthetic oil needs to be changed every 7,500 to 10,000 miles.