First, try the thermostat, then the radiator, after that try the water pump, also check the hoses for any that are collapsed or leaking.
There should be a dipstick like the one for oil. Check with engine running.
how do you check the safety neutral switch on a 2003 Chevy Malibu
Compression test
Check your transmission.
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200 Chevy Malibu has a sealed system, so it does not have a dipstick to check the transmission fluid. If there are issues, one has to check the fluid while the car is running.
Unscrew oil level fill plug. Fluid should be level with bottom of plug
Unscrew oil level fill plug. Fluid should be level with bottom of plug
check for a blown fuse.
Check fuses
Check your power steering fluid.
Check your fluid levels.