Q: Timing chain broke, is my car not fixable now or do I have bent valves?

asked by on

Have I ruined my 2005 Hyundai Accent since timing chain broke and I tried to start car not knowing it was a timing chain problem ? Have I ruined my car ?

My car has 76000 miles.
My car has an automatic transmission.

Unfortunately, your engine - as most engines today - is what is considered an interference engine. The timing belt/chain is responsible for keeping the internal engine parts moving in the correct time. Interference refers to the fact the intake and/or exhaust valves occupy the same space as the pistons. The timing belt/chain keeps that from happening at the same time.

If the timing belt or chain brakes, the valves and pistons will hit each other. Valves can bend and/or break and the pistons can be damaged. The cylinder head would have to be removed to inspect the pistons. If the pistons are not damaged, then the least expensive route for repair, would be to replace the entire cylinder head with a rebuilt one as it is less labor intensive than rebuilding your existing cylinder head. If the pistons are damaged, then a complete remanufactured or used engine would be the least expensive route to repair the vehicle.

If you’d like a second opinion on this, have a certified technician, like one from YourMechanic, come to your location and inspect your vehicle firsthand and suggest what to do from there. Best of luck.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Timing chain broke, is my car not fixable now or do I have bent valves?

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: Engine valve leaking. 1998 Ford Crown Victoria.

Hello. It sounds like you may have a valve cover leaking. If it leaks, the oil can get on the exhaust and cause smoking, and if it gets on the oxygen sensors, then the car will run like this. The...

Q: Difficulty starting the car

There are several things that can cause the vehicle to take many attempts to start. The most common would be the ignition switch, starter, battery, fuel pump, or key cylinder. If you want to have this taken care of, a...

Q: Q: Engine not getting any fuel

Hi there. Your vehicle's fuel pump needs to prime/whine when the ignition is turned into the on position. If you do not hear this humming noise it can mean you have a faulty fuel relay or fuel pump itself. Another...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...