timing chain went today 72,000 miles and they say its not under warranty how can that be its a 2012

 

The warranty starts on the date of manufacture; not January 1 of the model year. In your other post they said the warranty expired last month. This means your Equinox was probably built in October 2011. I would contact GM/Chevrolet customer service about getting the repair covered.

 

not sure what you mean about getting the repair covered if they already said they wont

 

I'm assuming it was the dealership that told you it wouldn't be covered. Go over their head and contact GM/Chevrolet customer service directly.

 

the warranty starts on the in-service date...the date the car was first sold from the dealership to consumer. The only way to know this date if you are a second owner; is to bring the dealership your vin.

I thought powertrain in 2012 was 5 years 100 000 miles...so find out your in-service start date.