If its a 4d68t engine, there's full manual available online and it gives a full description of the action required. Its a bit tricky but not too bad.
They don't have timing belts.
standard mileage for most all timing belts is 70,000 miles, but not many Jeeps have belts, they have chains that do not need to be replaced
were are the timing marks at
It depends on the year.
Yes , it is an interference engine according to Gates ( they manufacture timing belts etc. )
Toyota Echos have a timing chain rather than a timing belt so there is no need to change it.
Mustang's have timing chains not belts and do not have interference engines. Change the timing chain when it brakes or stretches to the point it throws off your valve timing.
It does not have a timing belt, Chevy did not use timing belts in there truck engines.
Buick Regals don't have timing belts. They have a timing chain.
Toyota 4 cyl have always came with timing chains. The v6 have timing belts
The Accord changed from a belt to chain in 2003. The Civic changed from belt to chain in 2006. Prior to that they all had belts.
Never. 1995 Nissan altimas have 2 timing chains. Not belts.