water coolant hose sucked in!! help!!

[rust]

hello owners!


i have put tax back on the FD this month and it started up fine everytime..
BUT i have jump in to a problem... after turning off the FD and waiting for around 10-15 mins with the bonnet up, you can hear some water sound from the over flow tank pulling in water.. but i have found that my top and lower coolant hose has sucked it self in and when i open up the non filler cap it will pop back out...

do i have a sign of water seal problem?

OR

1. do i have some kinda split pipe ?? ( i have replaced my old radiator hose with samco hose.

2. could it be the filler neck cap and the AST cap need changing ?

3. blocked radiator or nackered?  

4. over tank pipe has split or bottle is nackered?

5. some help please...

im from milton keynes and if anyone nearby is around and dont mind helping me i would thank you so much!

[clive]

Sounds like a blocked vent pipe, the 10mm one that goes onto the base  of the radiator, not saying it definatly is but this is where I would start, also have a look at the AST piping .

[rust]

Cheers Clive, will check that out... I think it\'s a blocked pipe somewhere too, when I open the filler neck cap the hose all pop back out... But I guess I got alas of air in the system now