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Subject Pressue In Cooling System When Cold...
     
Posted by Chad M (CA) on September 18, 2008 at 4:40 PM
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Message I don't understand how this is happening, but it's happened
atleast 3 times now. To keep it simple I'll let you know the
car does have an unresolved overheating at idle issue even
after replacing every part of the system, some parts 2x over.

Every possible part or test has been replaced/done to resolve the
overheating issue, but I still have no definte answer.


Lately, when my car has been sitting in the garage for a
week or so, it will develop small coolant leaks here and there.
Usual leak spots are the air bleeder cap on the top of the
radiator and the lower radiator hose where it attaches to the
radiator. I tighten up the leaks and they seem to stop but not
completely.

This is the part I don't understand, after fixing the leaks I'll
remove the radiator cap and coolant will expolde everywhere.
This is after the car has been sitting and not started for weeks
or more. I can't say forsure if the system is under pressure or
vacuum? It's hard to say with what I've seen so far. After removing
the cap, the coolant is at the very top of the radiator neck.

Any ideas on this one? I tried searching for hours and
found one person having this problem back in 2004? but there
was no clear resolution.

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1995 300ZX TT
     
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