stevieb92
Well-Known Member
- First Name
- Steve
- Joined
- Jun 5, 2020
- Threads
- 58
- Messages
- 292
- Reaction score
- 449
- Location
- Pittsburgh, PA
- Vehicle(s)
- 2020 JLU Rubicon 2.0t
- Occupation
- Mechanical Engineer
I would ask for a detailed explanation on how air is sucked into the cooling system when it gets hot, because the system is under pressure when it's hot. The pressure has to be raised to keep the coolant's boiling point higher than the system temperature under normal conditions.Quick update on my case: service dept from the dealership just called me mid-diagnosis to ask if I had added any coolant to the system. Looks like I don't have a leak, BUT I think they checked for this TSB and a lot of my bolts were loose. He said that one potential theory (which I can't comment on if it happened or not) is that when the engine gets hot enough, air was sucked into the coolant system since everything was loose, and that air pocket working its way through caused the coolant itself to stop circulating as well and thus overheating.
In any case, they said they'll have another update tomorrow, and perhaps be done.
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