Perhaps the radiator thermostat is not opening all the way. Relatively
cheap to fix.
As for the serpentine belt, there is a tensioner on the right side of the
engine. It has an adjustor screw in a tube sticking up, but you need to
remove the fan shroud to get to a 19mm bolt on the front of the tensioner to
loosen the tensioner.
you may have an air lock.
i don't know if the car has a clutch fan or not. if so the blades should
be a bit hard to spin .
if it does have a clutch fan it should kick in and you will hear it <or
feel the wind hood up>
when it gets around 100C then it should slow after 1 to 2 mins
100C i would not worry about if it stays there. that means every thing
is working fine.
if it creeps to the 110C range then you need to get it looked at.
the case, minus a few cans!
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