TwinTurbo.NET: Nissan 300ZX forum - Bubbling/Boiling noise from rear of engine...
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Subject Bubbling/Boiling noise from rear of engine...
     
Posted by supermario680 on July 27, 2011 at 12:06 PM
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Message After spirited drives in my TT I hear a slight bubbling/boiling noise from the rear center of the engine. I'm almost certain that its my coolant bubbling, but there are no easily visible leaks or puddles under the car and the coolant level seems fine.

I also noticed that there doesn't seem to be much pressure when I squeze the upper radiator hose when the engine is hot, where on my old Z it felt like it was about to burst...

Don't think the bubbling is normal, maybe an un-seen coolant leak somewhere? or maybe a air bubble?

I haven't messed with the coolant since winter..

     
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