I recently developed a coolant leak on my astra and also at the same time the engine started shaking when I started it from cold. I took it to get my leak sorted but as it only seemed to be leaking when the engine was warm they couldnt fault my system and couldnt find my leak! (told me to take it back when it got worse). So as a last ditch attempt to sort the leak I bought some k-seal, (not 100% certain if it has fixed my leak but that is not the point of this post!!!).
At the same time I put the leak sealant in my system, the shaking from cold stopped completely, this to me says that it was leaking into my head some how. Am I jumping to conclusions? as it seems very coincidental that it stops shaking at the same time I put the sealant in the coolant system.
I am thinking its more my head than anything else as I had a pipe fail on me just before xmas as I was travelling down the motorway emptying my coolant system.
Any body got any ideas as to what it might be or how to go about finding out if it is indeed my head gasket?
My cars a 1.6 astra club 16V twinport