25002500 Posted August 23, 2011 Share Posted August 23, 2011 I have an engige overheating problem.It only overheats under a load on 20 mile or more trips (we run very short distances)I can run it all day long under a load on short runs 10 miles round trip and it never over heats.20 miles +, it over heats every time.When it does overheat if you back off the throtle it cools down fairly quickly.Belts are good and tight, raidiator fins have been cleaned out.Any thoughts? Quote Link to comment https://www.bigmacktrucks.com/topic/20292-engine-overheating/ Share on other sites More sharing options...
fjh Posted August 24, 2011 Share Posted August 24, 2011 I would suspect the fan hub by what your discribing Quote Link to comment https://www.bigmacktrucks.com/topic/20292-engine-overheating/#findComment-84317 Share on other sites More sharing options...
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