bleeding radiator on 1.2

[Anonymous]

I had my radiator replaced over a year ago. When I start the car there is a sound of running water, but the car performs as normal. No mayo, heater works, no overheating, everything seems fine. I have tried to bleed the system but to no success.

There is one screw on top of the radiator but nothing comes out, no water nothing. There are 2 other bleed points near the bulkhead but they are fine. The system has the correct amount of fluid in it, so this suggests a block somewhere, somewhere in the radiator? So what should I do? Drain the system, flush it out and refill?

Car is a 1.2 Bravo

 

[Insomnia]

Interestingly, I have exactly the same issue on mine.

Recently had the coolant redone and over time air has got into the system. The 2 bleed points on the pipes are fine but the rad point doesn't do anything like yours.

Tbh, I have no idea.

If I pressurise the system and blow into the expansion tank, then water comes out. Odd one.

Longest Serving BOO Member

Bravo: Nov 01 80SX / 75,000 miles
Coupe: Feb 97 20V N/A / 135,000 miles

 

[Anonymous]

Is it likely to cause any issues if I leave it alone?

 

[Anonymous]

If the heater is hot and fan switches on (in traffic) then i don't see a problem though i cant understand why the water is not coming out of the rad bleed screw

 

[Anonymous]

Put heater on, start car, open the expansion tank, open bleed screws and blow into the expansion tank. As it starts to dribble out lock the bleed screws. Refill coolant when needed. Should do the trick.

 

[Anonymous]

yes I've tried all that, I have bled the system a few times to no avail! No water comes out from the screw on the rad! I'm going to flush the rad tommorrow and see how that goes!