Running a little warm ? Air in system ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

6600DURAMAX · 05-30-2023, 10:25 AM

Truck isn't mobile yet - working on the hydroboost brakes ( bleeding them takes forever) - so I have been starting the truck up and letting it run for three to four minutes then shutting it off - doing that a few time noticed the temp around 220.

I did only notice that one of the two fans were kicking on so I am asking my tuner if thats in the settings or if there is another issue but it just doesn't seem like it should be getting that hot just idling .........

Specs - Blueprint LS3 -408
Aluminum radiator with dual fans
185 degree thermostat

Do I have air in the system ? what gives ?

05-30-2023, 10:25 AM	#1
6600DURAMAX Registered User Join Date: Nov 2000 Location: Wheatfield IN, USA Posts: 1,124	Running a little warm ? Air in system ? Truck isn't mobile yet - working on the hydroboost brakes ( bleeding them takes forever) - so I have been starting the truck up and letting it run for three to four minutes then shutting it off - doing that a few time noticed the temp around 220. I did only notice that one of the two fans were kicking on so I am asking my tuner if thats in the settings or if there is another issue but it just doesn't seem like it should be getting that hot just idling ......... Specs - Blueprint LS3 -408 Aluminum radiator with dual fans 185 degree thermostat Do I have air in the system ? what gives ? __________________ 1972 K5 - LS3/408 (595Hp) -6L80e-One Tons with 4.56, 20'' Beadlocks with 37'' rubber, full TMI interior, JL Audio ..... 1971 CREWMAX Build.....at body shop for couple more years

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