Quote Originally Posted by miked View Post
the reason why it's the lower rad hose is because due to its old age and it is collapsing at high speeds creating vacuum in the water jacket in the engine block....i did recommend checking the lower rad hose at the other "overheating thread" in this forum. i don't know kung ano na ang nangyari.

the bubbling issue happened to me... i changed first the lower rad hose. no good until i decided to change the HG. no bubbles so far.
my sincere apology. i forgot to mention sir miked that its your inputs in the other thread that made me decide to buy the lower hose, although i did not install it immediately because i was convinced then that my problem was a HG one... nonetheless, my sincere thanks to you too albeit belayed ... cheers