It should have from 2 up to 4, depending on the engin on your equinox. Just follow the exhaust system from the engine all the way to the back of the exhaust. Normally there is 1 on each side of the engine where the exhaust starts on each side and then another one where it gets together going to the back of the car and the last one sould be after the catalytic converter.
Hope it helps......
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5w 20