overheating on 2001 Cadillac Seville STS

my cadillac sts started overheating ever since i changed the thermostat it"s been overheating abnormally,first themostat i changed since i owned the vehicle about a year ago,

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1 answer
I know this sounds like a silly question but are you sure that you put the thermostat in correctly. If you did you could have an air pocket in the cooling system. I would see what the bleed procedure is for your vehicle.

Neil Bilodeau
SAF-T Auto Centers
Wallingford, CT 06492