Q: When I went to change the timing belt there were 25 teeth were missing but it didn't jump time - how is this possible?

asked by on

Had an 06 Kia spectra come in to the shop with a clicking noise coming from the timing cover started the car twice in the shop and found that the timing belt was missing some teeth did not start it again pulled the timing belt off and found 25 teeth in a row was missing and the engine had not jumped time a single tooth how is this possible

My car has 151000 miles.
My car has an automatic transmission.

Not all the teeth need to be present in order for the pulleys to turn. However, the only way to tell if the cam and crankshaft were really in the right position relative to one another is to line them up before taking the belt off and when the engine is at TDC on cylinder 1. If all the pulleys were lined up to the marks that are embossed on the engine, the only explanation is that the few remaining teeth were stout enough to turn the pulleys without breaking. However, even that doesn’t seem likely, especially since 25 missing teeth in a row would suggest that there weren’t even enough teeth for the belt to fully engage the crankshaft timing gear, thus slippage would have been inevitable. If the 2.0L engine you have has a double overhead cam, that is an interference engine (the single cam version of the 2.0L is a non-interference engine). If you’d like a professional technician check out the engine for damage, due to the failed belt, and/or install the new timing belt, consider YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. When I went to change the timing belt there were 25 teeth were missing but it didn't jump time - how is this possible?

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: Problem with timing belt tensioner. Hear rattle.

When timing belts are replaced, I also recommend getting the water pump and tensioner replaced since they are known to cause noises. If the technician that replaced the belt did not tighten the new belt enough, it could be the...

Q: 04 kia sedona cuts off when i press the brake

Hello, thank you for writing in. You are going to be more concerned with how the vehicle regulates the engine performance when the brakes are applied, rather than the brake system itself. When dealing with something like this, you will...

Q: Power steering cost and repair.

Billing question sent to CS for the cost of diagnosing the power steering system and the cost to repair the power steering system on a 2009 Kia Spectra with a L4-2.0 engine.

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.