You don't. It has a Timing Chain
The 2001 Nissan Pathfinder has a 3.5 liter engine with a timing chain rather than a belt. http://www.samarins.com/reviews/pathfinder.html
The recommended mileage to change a timing belt on a 1995 Nissan Pathfinder is 100,000 miles. The belt may need replaced before this.
if the front coveris plastic it is a belt/ if the front cover is metal it will be a chain
the 2001 does not have a timing belt,instead a timing chain,which does not required replacement as often as belt
Timing belt
2001 Mazda MPV does not have a timing belt, it has two timing chains.
how to change drive belt 2001 alero
There is no belt to change; it uses an internal timing chain.
Timing belt
It does not have a timing belt, it has a timing chain that requires no maintenance.
Every 60,000 miles.
Timing chain