still showing its running hot
your thermostat should be a 195 degree one~ if it is Stuck will cause the overheat like you say~
I meant 295...real near boiling point~ my tea has gone cold~
perhaps they failed to put coolant in there~?
you may have problem with radiator clogging
Mechanic did do a good job, take it back.
Most likely still air in cooling system like Tom says take it back to who did the job.
Looking for a Used Grand Prix in your area?
CarGurus has 3,715 nationwide Grand Prix listings starting at $1,100.
Search Pontiac Grand Prix Questions
Pontiac Grand Prix Experts