overheating on my Pontiac

[greenlife4]

hi,

I have overheating on my sunfire 2002 just 3 minutes after i started them.

I've changed radiator liquid , and i have the same issue.

NB : the temperetur needle indicates over 125 c° ( Max )

I don't know why
Help me please
thanks

 

[melsg5]

assuming the gauge isnt giving you an inaccurate reading it could be a stuck thermostat, clogged radiator, air in the system, etc. Do you have a leak in the system?