Engine overheat
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New User
Joined: Aug 2016
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Engine overheat
Going down the highway and out of no where my engine climbs up to make heat. Pull over and open her up and im out of coolant, i recently had full thing of coolant in there 3 weeks ago but it was probably at least 3 years old. So im questioning if coolant just went bad and it needs to be flushed or what yall think. Also what coolant you recommend.
Cargo Master
Joined: Oct 2012
Posts: 3,072
Likes: 48
From: California
When you refilled the coolant 3 weeks ago, did you let the engine warm up? If I don't let it warm up, the t-stat will keep the coolant level high in the radiator. Then when the engine warms, the t-stat opens, and the high level of coolant in the radiator will fill the engine, leaving the radiator half full. At least 1.5-2 more gallons will be needed to top it off. So maybe you just need to top it off.
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