Running hot

Air in system bleed air from system like this remove cap from overflow tank fill with antifreeze to full mark leave cap off and start vehicle and let idle you will notice level in tank start to rise this is normal once thermostat starts to open level in tank will drop add more antifreeze to full mark then put cap back on.

Good morning sir I have bleed the from system several times in it continue to run hot

Ok if still over heating thermostat not opening or bad head gasket. Is the fan coming on ?

yes the fans are

Thermostat or head gasket

ok thanks

Just was thinking of a couple of more things that maybe your problem have cooling system flushed maybe clogged and also check to make sure water pump is circulating antifreeze through engine. Recheck thermostat I have seen some brand new out of box not working.

I will give it a try thank you

I have a 2015 srt 6.4 challenger, replaced thermostat last year. Today it ran hot after sitting well under 5 minutes, cooled off when I drove it home. Any ideas?