Yes, and it must be replaced every 60,000 miles.
A 2000 Mazda 626 (4 cyl and V6 engines) has a timing belt.
The timing mark for the Mazda 626 is in front of the engine. The marks for it belt are on the belt itself. The time for this can be set with a timing gun. A mechanic can set this for you.
belt
with tools
it belt drive
$400 -600 depends on how many idlers need replacment
Yes , it has a timing belt and it is not an interference engine
they have a ribbed timing belt
The timing belt on a 2002 Mazda 626 should be changed every 100,000 miles. By replacing it before it completely fails, costs repairs can be avoided.
I had the same issue with a 1990 Mazda 626 and replacing the timing belt cured it.
A computer diagnostic test will show a timing belt problem for a 1999 Mazda 626. If there is a problem with the belt, diagnostics will determine if it needs to be repaired or replaced.
timing BELT