It might not be the timing chain, check if the exhaust muffler has not come adrift.
By replacing the chain and tensioners.
timing chain making a noise?
If you have a 4.0 SOHC engine you are hearing the timing chain rattle against the timing chain guides. Some slight noise is normal, but an excessive amount may mean you have timing chain guide and/or tensioner problems. If you have a 4.0 OHV engine, then you are probably hearing some lifter noise. Again, some may be normal, but excessive may be an indication of lifter troubles.
Sounds like a loose timing chain.
Piston slap and timing chain related noises can be very similar. If it is a piston slap noise the noise may be louder during power braking and may quiet down as the engine warms up.
chain. if you hear a clattering noise the timing chain and timing chain tensioner need to be replaced they are usually sold as a kit
For longer life with less maintenance, the Sentra engine uses a timing chain instead of a cheaper, but quieter, timing belt. You don't notice the extra noise generated by the timing chain. For longer life with less maintenance, the Sentra engine uses a timing chain instead of a cheaper, but quieter, timing belt. You don't notice the extra noise generated by the timing chain.
If you hear any noise from the chain it needs replacing.
Timing chain noise is most commonly coming from a loose chain. The tensioner could be loose or broken or the chain could be stretched. If the chain slips or breaks before you fix it, then not only will the engine stop running but you could cause serious damage.
It has a timing chain. The majority of 4 cylinders have a timing chain. You don't need to replace it unless it is making noise or the timing is significantly off.
unless there is noise coming from the timing chain, you should never need to replace it.
AnswerI think this engine uses a timing chain, but I am not 100% positive. Regardless, the noise you are hearing is either a timing chain that is loose or a belt. I would suspect that the timing chain is loose. Have this looked at ASAP.It could also be the timing tensioner also.