I've got '13 isx15 450hp that seems to run hot. I'm climbing hills and with a/c off and fan on it can barely keep temp under 210F
I'm thinking maybe I have blockage in radiator somewhere. What can I do to help keep it cool?
2013 ISX15 running hot
Discussion in 'Trucks [ Eighteen Wheelers ]' started by mitmaks, Jul 27, 2021.
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First, blow the radiator out from the inside forward. It's likely got some external flow issues. Keeping RPM's up on hills will help keep temps down too.
What RPM are you pulling these hills.mitmaks Thanks this. -
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Nonetheless, the lower that RPM is, the harder that engine has to work. -
Water pump was replaced last year
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My truck ran 192* empty. New radiator and thermostat, it runs at 180*. Climbs when I pull a hill. But even in cases like you, if I flip the fan on, it runs at 176* grossed, and pulling a hill for five minutes straight in 6th gear.
Point being, your manual fan should be able to control your temps perfectly if everything else is right.spsauerland and mitmaks Thank this.
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