Hi
I have a issue with a gm 3.4 it have problem with the temp before , the temp gauge runs almost on red 3/4 of the gauge it star happening one day to other ' this car never have this issue before it was running very close in the half gauge even on idle or heavy traffinc bumper to bumper
7 weeks ago we notice the guage suddendly goes too high 3/4 of the gauge
That is not normal
We replace te radiator ' water pump ' thermostat' hose ' drain the air and continue the same proble
Fan kicks on low at 3/4 gauge then goes to the middle
We think it have blows head engine , we decide to replace the engine and put one NEW and it continue with the same F issue
Online many peoples have the same issue but no find solutions
Anyone solve this issue ? I'm appriciate your help
Thanks