Very rarely
Timing chains should last the life of the engine and are normally replaced when the engine is rebuilt.
Timing chains never need to be changed, only belts.
No. It has two timing chains. They should not ever need to be changed.
Timing chains are designed to last the life of the engine unlike timing belts.
A 2002 Grand Caravan would have either a 3.3L or 3.8L V6. Both of those engines have timing chains that will last the life of the engine and should never need serviced. A 2.4L inline 4 cylinder in a Caravan or Voyager has a belt that should be changed around every 100,000 miles.
Timing chains are designed to last the life of the engine.
Timing chains are not like timing belts, they do not need to be changed. They are designed to last the life of the engine under normal use.
Timing chains usually do not need to be changed until an engine needs to be overhauled. You may need to change it if it makes a weird noise, other than that you should be fine.
Timing chains are designed to last the life of the engine unlike timing belts.
Yes Timing Chains need to be replaced because they stretch out and Wear over time!
No. All BMWs since E36 have had timing chains and not belts and therefore do not need to be changed.
no cam belt. BMW x5 use drive chains.