On a 2003 Mazda Protege it must be changed at 105,000 miles. This is an interference engine and as such if the belt breaks serious engine damage will occur.
timing belt
Belt
Belt
2001 Mazda MPV does not have a timing belt, it has two timing chains.
If you are refering to the timing belt, then there is no belt it is a timing chain and does not need replacment.
I was looking at the Gates website ( they make timing belts etc. ) and for the 1600 cc engine in a 2003 Mazda Protege ( Canada ) it shows ( 60,000 miles )
how to change the timing belt on a 2003 jetta
chain
at how many miles is it before you change your timing belt
You should change the timing belt on a 2003 when it wears out or breaks. Changing the belt beforehand is not needed.
WHATS THE TIMING MARKS ON 93 MAZDA 929
A 2003 Impala does not have a timing belt. It has a chain.