I want to know if all the nissan sentra GXE 2002 model have timing chain and not timing belt.

timing BELT ! IF YOU NOTICE A LOSS OF POWER ON PARKWAY, you will need to replace the belt, or it will get worst, can't keep up with other cars and it will damage the engine. making it work harder. just replaced one on 2002 nissan sentra, my daughters car. very complicated, left dealer do it, $900 .

Should change the belt and tensioner every 60,000 miles

The sentra has a timing chain.

good day Sir, your nissan sentra 1999 gxe have a timing chain this is some tips for your routine maintenance.
Replace engine oil
Replace engine oil filter i

it has a timing chain, no service is needed for a chain.

Here is a diagram of the 1.8 exhaust from the service manual, you can obtain a full factory service manual for relatively cheap from Promanuals.net here.

this is a long answer to type out suggest you buy a chilton or haynes manual at locale auto parts store.they give a good step by step with pictures. you will need for the timing marks

It has a belt. You should replace it soon.

well maybe there was some mis-communication there , nissan stopped using timing belts in sentra's and actually most all models in 2000 , maybe they were telling you that your serpentine belt needed changed ? but to answer your question , you do not have a timing belt in your 2002 nissan sentra . its a chain . thanks

J5

I own this car, and I can say confidently that it has a timing chain instead of a belt. I believe you do not need to change the chain at any point...... it is more a matter of maintenance and repair to worn guides and tensioners.