Quote:
Originally Posted by Pruts3r
Overpressure on cooling system isnt usual with failing inlet manifold gaskets right???
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No, not from the inlet manifold. Cold system overpresure is due to exhaust gas. As I suggested in post 40, you ought to look specifically at the residual pressure in the cooling system. Do a test with that objective.
With everything stone cold, adjust the coolant level to Max.
Drive for 10miles or so at normal speeds, fast and slow.
Park car and leave untouched for 6-12 hours or overnight.
When stone cold, open the coolant filler cap and observe any significamnt release of pressure. There should be none.
If there is a repeat of what you last desribed (post 54), have a carbon dioxide (exhaust gas) test done. Or buy a test kit and do it yourself.
TC