I am trying to change coolant in my 1999 olds cutlass and i cannot find the drain plug
It is located at bottom of radiator, you will need 1/2 inch square drive or a 3/16 inch hex drive to open drain valve. Usually on pass. side at bottom end of radiator.
The coolant-drain plug is found underneath the radiator. Here's a great, handy article on how to go about draining the old coolant and pouring in the new coolant:
http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Vehicle_Car_Zone_Cars_Trucks_Vans_Radiator_Change_Antifreeze_Coolant.htm
Follow the steps of the above-linked article, step by step, to easily change the coolant.
Try pulling the bottom hose and using it as a drain.
Factory block heaters are not installed on these
models. If an aftermarket heater has been installed the following
procedure will most likely work. There are two basic types, one for the
oil and one for the coolant. The oil heater usually just slips into the
dipstick tube or replaces the oil drain plug. The following procedure is
for the coolant type.
When draining the coolant, keep in mind
that cats and dogs are attracted by ethylene glycol antifreeze, and are
quite likely to drink any that is left in an uncovered container or in
puddles on the ground. This will prove fatal in sufficient quantity.
Always drain the coolant into a sealable container. Coolant should be
reused unless it is contaminated or several years old.
To install:
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