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Hi Im David, thanks for visiting the site, with the engine at operating temp make sure the upper and lower radiator hoses are equally hot.
you didnt answer my question.. please make sure the hoses are the same temp.
ok, then it sounds like you have air trapped in the system. havs the system been bled?
you may want to do a coolant system flush and then bleed all of the air out when you are through
the thermostat could be getting gunked up and sticking......
yes, I believe its nothing electrical and has to do with air in the system, a possible sticking thermostat and a needed system flush.
it should take care of it. please accept the answer and leave a 5 star rating for me if you are satisfied with my assistance. just remember, by accepting the answer and leaving a rating doesnt mean we are done. im here to help you until the vehicle is fixed.
i think theres a place on you side to accept then a rating scale will come up
thank you. ill be here if you still need help.