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It has a chain.
Chain
Timing chains normally last the life of the engine and are replaced when the engine is rebuilt.
There is no timing belt. It is a chain driven cam and there is no change interval. They get changed when the engine is overhauled.
Yes it has 3 if it is a 4.7
Chain. if it is a 4.7 engine it has 3 All engines in a 2002 Ram 1500 have chains.
Whenever you rebuild the engine.
Chain is not timed correctly.
It is on the front of the engine . The water pump bolts to it.
Yes.
It sits on the nose of the crank shaft, behind the timing chain.
Normally the timing chain will last the life of the engine and is replaced during a complete engine overhaul.