Nissan: steam from bonnet

Hi
have had my little nissan micra few years now but today noticed what looked
like Steam coming from the bonnet i opened the engine and it appeared not
to come from there, i did panic as last time i saw "white smoke" it turned
out my head gasket had gone and pipe had split , but this time came only
from top of bonnet , have asked friends and there cars dont do it does
anyone else have this problem??

thank you

kath

kath wrote:
 

Now that you know what it is, it shouldn't scare you anymore. Learn the
difference between steam and smoke. Steam dissipates within a few feet
of the source. Smoke continues for tens of feet or more, depending upon
the wind, until it spreads out and becomes less opaque. Don't waste your
money on a 'blanket'. Other than allaying your now-disspelled fears, it
serves no useful purpose.
In the old days, I ripped them out after they became unhitched and hung
down on the engine, requiring that I hold them up whenever I opened the
hood (bonnet)