there are three hoses coming from a coolant reservior on a 1999 Chevy Malibu one is for overflow and the other 2 go to upper and lower radiator......don't forget dex-cool only and other anti-freeze will mess your motor up ...good luck ......been a mechanic for Chevy for 25 years..so i hope my info helps
what is the labor cost to replace a wiper reservior bottle in a 2002 Chevy Malibu
Where is coolant fan switch located on 1998 chevy Malibu with 3 .1
it takes dex-cool coolant,
radiator antifreeze coolant.
if coolant is ok!! then check coolant sensor.
the thermostat is in the coolant cap
13.6 qts
no cap, just the coolant tank, add to this to add coolant../
it looks like a radiator with coolant in! it should be red.
check coolant sensor float most common problem.
dex-cool coolant is used in most 3.1 engines,
How much antifreeze does a 1998 chevy mabilu ls take