Coolant issues

[Slonis]

Hey, I’ve been having this issue for a long time, where my coolant starts to boil. While driving, everything is fine. But when I turn off the hot engine (220°F) to park, refuel, or whatever, the coolant starts to boil. You can hear it clearly, and a lot of coolant is pushed out through the overflow. When the engine is off, the fan doesn’t run either. I’ve tried many things, including replacing the coolant twice and installing a new thermostat. But nothing changes. Every summer, the same issues. What can I do, or has anyone experienced this problem?”

Ram gen.5 from 2020 laramie night

 

[HSKR R/T]

Hey, I’ve been having this issue for a long time, where my coolant starts to boil. While driving, everything is fine. But when I turn off the hot engine (220°F) to park, refuel, or whatever, the coolant starts to boil. You can hear it clearly, and a lot of coolant is pushed out through the overflow. When the engine is off, the fan doesn’t run either. I’ve tried many things, including replacing the coolant twice and installing a new thermostat. But nothing changes. Every summer, the same issues. What can I do, or has anyone experienced this problem?”

Ram gen.5 from 2020 laramie night

Sounds like a bad radiator cap not holding pressure

 

[Slonis]

Has anyone ever had this problem?

 

[SD Rebel]

Never seen or heard of this, I would contact a good indy shop and see what they think. As mentioned, did you already change the radiator cap?

 

[Scram1500]

Hey, I’ve been having this issue for a long time, where my coolant starts to boil. While driving, everything is fine. But when I turn off the hot engine (220°F) to park, refuel, or whatever, the coolant starts to boil. You can hear it clearly, and a lot of coolant is pushed out through the overflow. When the engine is off, the fan doesn’t run either. I’ve tried many things, including replacing the coolant twice and installing a new thermostat. But nothing changes. Every summer, the same issues. What can I do, or has anyone experienced this problem?”

Ram gen.5 from 2020 laramie night

Can you hear a cooling fan running at the radiator? It should kick on or before 220

 

[SD Rebel]

Can you hear a cooling fan running at the radiator? It should kick on or before 220

On a side note, mine turns on at around 228F, shuts down at around 220F, could be year specific.

 

[HSKR R/T]

Has anyone ever had this problem?

Change your radiator cap and report back