If it has not failed yet then you need to take the cover off and inspect it for cracks and such.
If it has failed there will be no compression, the engine will not run and the camshaft timing will be way out.
The 2.4 litre four cylinder engine in a 1998 Chevrolet Malibu has a timing CHAIN
The 2005 Chevy Malibu has a timing chain, not a timing belt.
None. It does not have a timing belt. It has a timing chain.
It does not have a timing belt, it has a chain.
It has no Timing Belt, it has a Timing Chain.
Timing Chain
chain
The 2003 Chevy Malibu does not have a timing belt. It has a chain which should last the life of the engine.
2.2 has a chain
Pushrod engines have a chain. Overhead cam engines have a belt.
4 cylinders have a belt and v6 has a chain!
It is your lucky day. The cost will be $0.00. The 2000 Chevy Malibu has a chain and NOT a belt. No maintenance is required.