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Old 04-13-2019, 04:07 PM   #1
Almost There
Join Date: Apr 2015
Location: Calgary
Posts: 74
Year: 2000
Coachwork: Bluebird
Chassis: TC2000
Engine: 5.9L Cummins
Radiator blower fan always comes on the first time I pull onto the highway

I dunno if this is normal? I have a 5.9L cummins turbo diesel with an allison at545 transmission.

Regardless of it being hot or cold, every time I first go on the highway, the engine will heat up to over 220 and then the cooling fan will turn on for about 2-3 minutes, bring it back down to 210 and then it will shut off.

Every time.

Is this normal?
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Old 04-13-2019, 05:50 PM   #2
Bus Geek
o1marc's Avatar
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 9,030
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Does it maintain temp after the initial heat up period? if so, sounds like a bad thermostat. 220 is hotter than I like to see during normal use.
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