Loading

What are symptoms of a worn timing belt?

A worn timing belt can cause significant engine problems and should be replaced as soon as possible. The timing belt is a critical component that synchronizes the opening and closing of the engine's valves with the movement of the pistons. When the timing belt wears out, it can lead to a variety of concerning symptoms that should not be ignored.


Common Symptoms of a Worn Timing Belt



  • Engine Misfiring or Rough Idling: A worn timing belt can cause the engine to misfire or run roughly, especially at idle. This is because the timing of the valve openings and closures is no longer properly synchronized with the piston movements.

  • Loss of Power and Acceleration: As the timing belt wears, the engine's performance will suffer, leading to a noticeable loss of power and slower acceleration.

  • Engine Stalling or Difficulty Starting: A severely worn timing belt may cause the engine to stall or have difficulty starting, as the timing is no longer properly aligned.

  • Ticking or Rattling Noises: A worn timing belt may produce audible ticking or rattling noises, especially when the engine is running.

  • Check Engine Light Illumination: The engine control module may detect timing-related issues and illuminate the check engine light on the dashboard.


It's important to note that a worn timing belt can also lead to more severe engine damage if it breaks, as this can cause the pistons to collide with the valves, resulting in costly repairs. Therefore, it's recommended to replace the timing belt at the manufacturer's recommended interval, even if no symptoms are present, to avoid unexpected breakdowns and engine damage.

How do you know if a timing belt needs changing?


5 warning signs to detect timing belt failure

  • Engine misfires. Timing belts run through a system of pulleys that operate both the camshaft and the crankshaft.
  • Smoke after starting the vehicle's engine.
  • Difficulty starting.
  • Belt appearance.
  • Loss of voltage.



Can I check the timing belt myself?


With the engine running and the timing belt cover off, look at the belt as it runs. It should stay tight and straight, if it's flexing, that's bad news and means it is more likely to jump teeth, which will give your engine a bad day indeed.



How much does it cost to replace a timing belt?


The cost to replace the belt depends on the type of car you are driving, but the average rate typically costs $500 to $1100However, replacing a broken timing belt may cost up to $2,000 or more if it has caused damage to the valves, pistons, or water pump.



Can you visually see if a timing belt is bad?


With it removed, you're looking for frayed edges or damage, perhaps worn teeth on the inside of the belt. If the rubber looks to be shiny or marbled, that's another sign it's getting old, along with signs of cracking within the rubber.



Can you still drive with a bad timing belt?


Can you drive with a broken timing belt? Your car cannot run with a broken timing belt . By the time the belt snaps, the damage is already done, and you will not be able to drive at all. You will need to have the vehicle towed to an auto repair workshop.



How long does it take a mechanic to change a timing belt?


between 4 to 6 hours
How long does it take to change timing belts? The time it takes to replace a timing belt varies depending on the car's make and model. On average, it takes between 4 to 6 hours to replace a timing belt. However, some cars may require more time as there may be more parts that need to be removed to gain access.



How much does it cost to fix a timing belt?


The cost to replace the belt depends on the type of car you are driving, but the average rate typically costs $500 to $1100However, replacing a broken timing belt may cost up to $2,000 or more if it has caused damage to the valves, pistons, or water pump. The timing belt itself is not an expensive part.



How do you tell if your timing belt is going out?


Symptoms of a Bad or Failing Timing Belt

  1. You Hear A Ticking Noise Coming From The Engine.
  2. Your Car's Engine Won't Turn Over.
  3. You Notice An Oil Leak Near The Motor.
  4. You Experience Exhaust Issues.
  5. Your Revs Start Acting Up.



Are there any warning signs before a timing belt?


A failing timing belt may cause a myriad of symptoms, such as unusual noises coming from under the hood, engine misfires, and poor engine performance.



Is there a warning light for a timing belt?


No... there's no warning light for the timing belt.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.