Hello, I have a 2016 kenworth t680 with Cummins isx 15 with an oil temperature problem. I already change oil temperature sensor, water temperature sensor, water pressure sensor, water thermostat, oil pump, engine bearing set. And I still got the same issue. It only occurs when I am pulling heavy because whenever I am empty no matter how hot it is it don’t show the check engine with the wrench. Any ideas? Mechanic wants to do overhaul.
Cummins ISX 15 High Oil Temp
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by MannyAgui, Jul 22, 2021.
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Did you change the oil thermostat in the cooler housing? How hot is it actually getting?
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Have you gotten an opinion from an actual Cummins shop?
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Coffey Thanks this.
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Goodysnap, BoxCarKidd and spsauerland Thank this.
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Yea and a bit of foot to the floor on a summer day?
Judge, BoxCarKidd and Dave_in_AZ Thank this. -
Probably sensor.
I know a couple people in AR that have Cummins insight and will work on that kind of engineDave_in_AZ Thanks this. -
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Do you not have a gauge for that in your Nav plus or Smart nav? I have 2014 KW with no boost or oil temp in cluster but it does on the gauges screen. Don't start overhauling it. It could be in the tuning and timing. Could be oil stat. It is about 85bucks. Change it. Cooler might be plugged? The bigger question there is with what? I am having very similar issues and have done everything except to change oil cooler and water pump. If I find a cure I will be sure and report it here.
spsauerland and Oxbow Thank this.
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