I have an '02 T-800 with a 6NZ. It has been bumped to 550hp since new, around 4000 hours since the platinum inframe done by Cat (@29,000+hrs). Last few years it has started running hotter than usual while climbing long hills. We do a lot of heavy haul, 9 axle and 40 wheel combination stuff. I have to drop a gear or two and keep the boost pressure down or it will walk through the bottom of the gauge if I keep pouring the coal to her. Rad has been flushed, cleaned several times, removed and cleaned once, (took the rad to a shop where they do a tank soak and clean) thermostats removed, water pump has been replaced, can't think of anything else to try other than replacing the rad. Is there a better (higher core count) aftermarket solution than just replacing with the same as OEM? Thanks.
Aftermarket Radiator
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Troy_, Jul 18, 2021.
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Is it possible your ga is accurate,hoses are not collapsed at all..
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There is a much better than stock rad and intercooler set up but im blank on its name..
Try running over to the question/answer section of letstruck.com
Free site to join but someone there will have the name i cant think of..Rideandrepair Thanks this. -
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Ok..Then its deeper than my knkw how..I would run over to that site i mentioned and ask there..
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1 800 Radiator, or 4 states will get you your best deal on a 4 core. Cooling will be much improved. How's the A/C working? If not as good as normal, I would think possible contamination outside from dust, chaff, etc.
Make sure fan is pulling good too. Throw a grease rag on the A/c condenser with the fan on, it should hold it firmly. If it falls off or is not firmly drawn to condenser, fan operation or exterior blockage is likely your issue.Rideandrepair and Troy_ Thank this. -
For ####s n giggles, hows the grill? The fine mesh isn't plugged up or anything?
What about shrouds and such? See lots of overheat conditions on equipment when the shrouds, seals or flaps are missing. Air is lazy, it'll take the easiest route and if its easier to flow around the rad, it will.p608, Rideandrepair, w9l and 2 others Thank this. -
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