Score: 4.8/5 (74 votes)
The chain is located in the front of the motor and is attached to a set of gears and pulleys that power multiple mechanical components, including the crankshaft and camshaft. In order for your engine to fire, the timing chain must smoothly rotate around the gears without hesitation.
How do I know if my timing chain needs replacing?
Common signs of a faulty timing chain include engine misfires, metal shavings found in the oil, and rattling sounds from the engine while idling.
- Engine misfires or runs poorly. ...
- Metal shavings found in the oil. ...
- Engine won't start or fails. ...
- Check Engine Light is on. ...
- Engine rattles while idling.
Where are timing chains located?
A timing chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine's valves to open and close during each cylinder's firing. The chain is located inside of the engine and needs to be lubricated by the oil in the engine, making oil maintenance important as well.
How much does it cost to replace a timing chain?
Replacing the timing chain is a complicated job, and the labor costs can be quite high. For most cars, a timing chain replacement costs between $413 and $1040, or you can order the parts themselves for $88 and $245.
How long does a timing chain last?
The metal links in the chain move on the tooth sprockets on the end of the crankshaft and crankshaft so that they rotate together. The timing chain normally needs to be replaced between 40,000 and 100,000 miles unless there is a problem.
Is it worth replacing the timing chain?
Unless there is a specific problem, the timing chain normally needs to be replaced between 80,000 and 120,000 miles. If you drive an older vehicle, or one close to 100,000 miles, you should have it replaced or at least become aware of the symptoms of a failing timing chain.
Can you drive with a bad timing chain?
If the timing chain were to break, it will jeopardize the entire internal combustion process. This means you won't be able to drive your vehicle anymore.
What sound does a bad timing chain make?
Repeated misfires could indicate a timing chain issue and should be investigated. There is a rattling sound. A lax timing chain, or worse, a broken timing chain with loose parts within the engine, will produce a rattling sound when your car is idling.
Do timing chains last forever?
A: As a general rule, if an engine has a timing chain and the oil was changed on a regular basis, the timing chain should last the lifetime of the engine.
Do you have to remove engine to replace timing chain?
Some timing chains drive the water pump, too, and sometimes the engine must be removed to replace a timing chain. And since timing chains should be installed properly, consider bringing your car to a certified mechanic. There are a lot of other engine parts that must be removed before you even get to the timing chain!
Can you tighten a timing chain?
Rotate the eccentric to tighten or loosen the timing chain. The timing chain should be loose enough to prevent binding and tight enough to keep from falling off. ... When you think the chain is adjusted, tighten the eccentric and rotate the cranks to see if there is a tight spot.
Can you replace a timing chain yourself?
Every car has a timing chain. It is the connection between the camshaft and the crankshaft. ... And just like any other car parts, the timing chain also needs to be replaced and changed. But you can do the job all by yourself if you have the right tools, some mechanical know-how, and a service manual.
What happens when a timing chain breaks while driving?
A broken timing chain will cause an engine to not start or fail while driving. If the belt is already broken, the engine won't have enough compression to start. If it breaks or jumps while driving, the pistons will be damaged from contact with the valves. The valves themselves will bend and potentially ruin the engine.
What does a worn timing belt sound like?
A failing bad timing belt sounds like a ticking noise in front of your car when it starts wearing out. If the belt eventually breaks, it will give a whining noise when trying to start the engine. A whining noise sounds like no compression in the engine.
Is a timing chain hard to replace?
Changing a timing chain is not outright difficult but is considered a complex job due to the large number of steps involved. ... The timing chain and water pump are both labor-intensive jobs in the same area of the engine, so knocking out both now can prevent having to do many of the same steps again later.
What is the code for a bad timing chain?
If your engine won't start or is driving rough, you should bring your vehicle to a mechanic so they can fix the damaged timing chain and the p0335 code. Furthermore, if your check engine light is on, this is a clear symptom of a faulty timing chain.
What are the symptoms of a bad timing?
Symptoms of a Bad or Failing Timing Belt
- You Hear A Ticking Noise Coming From The Engine. ...
- Your Car's Engine Won't Turn Over. ...
- You Notice An Oil Leak Near The Motor. ...
- You Experience Exhaust Issues. ...
- Your Revs Start Acting Up.
What causes timing chain failure?
A timing chain can break with either too much or not enough tension. If the chain does not have enough tension, it can develop slack. ... A chain with too much tension can also fail, as it is placed under excessive stress. Tension increases friction and heat in the chain, which can result in failure.
What's better timing chain or belt?
Most automakers recommend replacing the timing belt every 60,000 to 105,000 miles. Timing chains are heavier and more complex than timing belts, but they also last much longer. Really, unless there's a problem, timing chains don't have a replacement interval.
How do you know if your timing chain tensioner is bad?
Symptoms of a Bad or Failing Timing Chain Tensioner
- Engine may stall or run rough.
- Noise in the front of the engine (a rattle or rumble, associated with engine speed)
- Check Engine Light may illuminate and set misfire, camshaft sensor, and crankshaft sensor codes.
Does a bad timing chain burn oil?
A worn timing chain can cause some camshaft timing to become erratic and cause a host of engine running issues. ... Oil burning is usually an indication of excessive engine wear (piston rings, valve guides, etc).