I am having chevy trailblazer'03, for the last few days I am having engine over heating problems while running with AC in the day timing. And even in night the temp needle goes a bit on right.
Since I am living in Arab, so obviously the day is quiet hot, but I remember my engine used to be working normal previously.
My only doubt was about radiator flushing, and I have already got this done, but this shows no change.
Right now I am considering two options, first or most likely is Fan Clutch or the second one is thermostat.
Can you guys suggest me, what should I do to troubleshoot my thermostat or fan clutch.
One important thing, I am not having any engine check light.
So please give out your suggestion.