It is a heater hose.
Find the source and repair it.
The 2003 Chevrolet Malibu PCM valve can be found on the firewall in the engine compartment. The PCM valve will be on the passenger side of the firewall.
you would have to pop it out on the inside of the block and then put some pst or somekind of waterproof sealent on the new plug and hit it in with a hammer from the outside of the block.This is from beebs08 not turk02
There is a drain plug just below the lower radiator hose.
radiator cap might be leaking
The 2000 Chevrolet Malibu windshield wiper relay switch is located on the firewall in the engine compartment. The windshield wiper relay switch will be on the drivers side of the firewall.
Pressure test the system and repair the leak. Do not use a stop leak.
Chevrolet Malibu was created in 1964.
There is a class action law suit pending against the dexcool, orange antifreeze. If air enters the system it will cause it to congeal.
At present there is a class action suit against Dexcool. So use the green antifreeze.
The first Chevrolet Malibu was produced in 1964 as a subseries of the Chevrolet Chevelle. In 1978 the Chevrolet Malibu became a model on its own, replacing the Chevelle.
The 2001 Chevrolet Malibu has a V6 engine.