Coolant leakage after radiator replacement
 

Hi all,

Last week, my girl friend drove my (1998) tiptronic boxster at nite and hit on a huge stone accidentally.... right bumper got slightly scratched and coolant has been leaking from the bottom right...

So I managed to drive the car home ... replaced the damaged radiator.. no more leakage on the front. I kind of followed the instructions as mentioned by pellican guide in burping the air in the system.

However, once my car has been warmed up , both the radiator manage to turn on now... the back of the car start leaking some coolant on to the floor... And im so suspicious... coz i have replaced the radiator.... and its only the front part that got hit.... why is there leakage at the back..

Could anyone please advice? Is there a hole somewhere near the engine bay to leak coolant out if there is an overflow or over pressure of air? Its making me very headache!! Thank you in advance if anyone could help !!!

Patrick

You still have air in the system and it is causing the system to create hot spots and overflow.

Thanx for your quick reply. Mate :)

May i ask what should i do to fully get rid of the air....

So which means the leakage of the coolant is not caused by a broken hose... And shd be a overflow of coolant.. :) great!

Could u pls advice any further procedure i shd perform... Shd i keep warming the engine and rev it and leave it overnite with bleed value open? Or any suggestions?

Thanx

Pat

are you sure your coolant cap is on correctly? it's very easy to thread it wrong. did you turn on the heater while burping / bleeding? also, the tip has a slightly different "bleed" procedure than a manual by pulling the fuse.

And although obvious to some people it may not be to all... do not overfill the reservoir, coolant expands and contracts, if overfilled excess will be force out onto the ground over a period of time. Just fill to the max line and keep an eye on it. As JFP mentioned you most likely still have air the system and it may take a while to completely bleed out.

Shd i keep the coolant cap open and click the bleed valve to the vertical position when i turn on the heater? Then leave the car overnite with coolant cap and bleed valve opened?

I reckon the tip has a diff procedure when pulling the fuse... when i unplug the fuse, everythg in the dashboard didnt work... Is it normal or its the wrong fuse?

sorry for asking too many questions... Coz theres just too many question marks in my head nw! Thanx

The correct way to refill the system is under vacuum, which totally eliminates any chance of air pockets.

Exactly. You need a good air compressor and one of these:

http://www.uview.com/site/ywd_uview/...ges/550000.jpg

Problem solved.

I used this when I flushed the coolant on my Tacoma, worked like a champ. Later on I did the "put a funnel in the radiator and bleed" as a check (since it was my first time using the uview) and no air came out. This was weeks ago and I still haven't had to add any coolant.

I agree, I wish I have the vacuum device but doing it regularly is not wrong, just not the best method. Porsche rear or mid engine is more suspeptible to air bc of the 1-mile long coolant line