Does anyone of you have any idea about what is going on? Here is my
problem:

It all started last june.
Symptoms: thermometer got high (8/10th of dial) in a trafic jam (never
happened before). Needle never came back to normal.. After a long
stretch of highway (more than 200 km) engine did overheat when we slowed
down. Gas Bubbles in the filling tank.

Done: changed thermostat, fan switch, expansion tank cap and finaly two
head gaskets (yes it happened to me too). It never realy solved the
problem wich slowly reappeared every time after 300 or 400 km).

Now: one of the new head gasket blew a few weeks after its installation.
My mechanic installed an other one for free. But... there are still
bubbles in the filling tank when the engine is warm and pressure still
seems to build up in the cooling system...Small leak in the area of the
water pump. Help! where do we look from now on? This thing is getting on
my nerves and is very bad for our couple. :-(