It doesn't. Timing belts need replacement but typically timing chains are expected to last the life of the engine. From what I understand that year Expedition has 2 timing chains and you should not need to change them.
On the 2000 Ford Expedition 4.6 ( and 5.4 ) There are ( 2 timing chains ) * 1 timing chain to each cylinder head
On a Ford Expedition : Both the 4.6 and the 5.4 liter V8 engines have ( 1 timing CHAIN to each cylinder head , so there are 2 timing CHAINS )
It has a timing belt that must be replaced every 105,000 miles.
unless there is noise coming from the timing chain, you should never need to replace it.
It has a timing belt.
This truck has a timing chain, not a belt. The chain will last longer than a belt and should not be replaced until it fails.
I just replaced the timing chain for my 2000 Camry. I did the same thing for my last Camry, a 1996. The timing chain goes after the water pump bearings fail and jams everything up. Then I had to replace the timing belt, water pump, and all belts.
No - the 2000 Sentra has a timing chain. No - the 2000 Sentra has a timing chain.
Yes it has a timing chain. The chain should last the life of the engine and is normally replaced during an overhaul.
The manufacturer recommends that you change your 2000 Nissan Frontier four-cylinder engine timing belt every 60,000 miles. The 2000 Nissan Frontier does not have a timing chain, it has a timing belt.
you should never have to replace the chain. not impossible but rare that this has to ever be replaced. if it is a 2000 to 2003 model with a 3.3l v6 it has a timing belt which needs to be replaced every 105000 miles.
It has a timing belt that should be replaced every 90,000 miles. The water pump should also be replaced as it is driven by the cam belt.