i just put in a new radiator,new themestat and a new water pump and it still ove on 1999 Cadillac Seville STS

car still overheat

Asked by for the 1999 Cadillac Seville STS
Could be a simpler fix like the coolant surge tank and or cap. I replaced the 15psi cap from Napa auto. $6 fix.
1 more answer
Sounds like a blockage exists somewhere in the system possibly the heater core. May need to take to shop so they can check the flow.