2004 Dt466 overheating

Did you fix the problem what was it? Same problem with my truck thanks

 

Like me in my video hahah

 

Could you tell me how you fixed it? Please thanks

 

Just a couple of thoughts. We ran into some similar issues a while ago. ( I dont recall what vehicle years ) I was told by a Navistar Tech. Rep. that 10 -15 degrees difference across the radiator was normal. Less than that showed not enough airflow across fins. More than that showed internal blockage in radiator, and poor flow allowed it to cool more. ( in rad. not in block ) The other problem we saw was that when water pump failed, the impeller would dig into front cover. It does not take much wear to impact coolant flow, and this would typically show up when weather got warmer, not so much in winter. Good Luck, please keep us informed.

 

I changed the radiator today it’s running great in this heat wave fan clutch finally coming on truck won’t run past 200 degrees at 75mph in this 105 degree heat wave in PA. Thanks for you help really appreciated

 

I am also having the over heating problem. Thanks to all for posting questions and answers. I want to try cleaning the radiator first. My thought was to rinse the radiator fins from the back of the radiator, forcing the dirt out the front. How about spraying with Purple Power first? Anyone ever removed the hood for better access. If so, what's the best procedure to get the hood off?

 

Good morning sir i have the same issue with my truck did you fix your problem.
i need some help