closed cooling will not take any coolant

clunk · Apr 8, 2009

I just replaced my lower rad hose and redid the upper tubing and tee's on my 1990's closed cooling system. I can't get the system to take any coolant, when I fill the overlow bottle it doesn't drain down into the radiator, it just stays in the overflow bottle.
What's going on?

hiimmred · Apr 8, 2009

Are you running the engine and have the heater on? If not try that it may help.

SINCITY192 · Apr 9, 2009

sorry for post on ya thread! just need some help i have a 88 xj i think its a closed coolant system too. I want to change my lower radiator hose but the new one i brought doesnt have spring? does yours? is it needed?

can i make it a open coolant system?

winterbeater · Apr 9, 2009

With the closed system, it is good to take off the upper hose at the radiator and get it full. Good to do with heater hose too. Then some people pull the rear temp sensor and keep filling the radiator hose until the air is bled out of there. You can convert to open, but the hot set-up for the closed is to add an Intrepid overflow bottle. Many new vehicles from Europe still use the closed system like the Mercedes M-Class SUVs.

clunk · Apr 9, 2009

winterbeater said:
With the closed system, it is good to take off the upper hose at the radiator and get it full. Good to do with heater hose too. Then some people pull the rear temp sensor and keep filling the radiator hose until the air is bled out of there. You can convert to open, but the hot set-up for the closed is to add an Intrepid overflow bottle. Many new vehicles from Europe still use the closed system like the Mercedes M-Class SUVs.

I hope I don't have to go to all that hassle, I've never had to do any of that when servicing the closed system. I got it to take around 8 liters of coolant before I got lured to the porch and cold beer. See how it goes tommorow.

SINCITY192 · Apr 9, 2009

amyone know the converting precedure?

winterbeater · Apr 9, 2009

New style radiator and overflow bottle.

outlander · Apr 9, 2009

SINCITY192 said:
amyone know the converting precedure?

You have a PM.....
Do a search on here using the term "poor mans open cooling conversion"you will see my thread about using the moroso filler neck....you dont need a new radiator you can use the old one.

**EDIT**
Here's the link:
http://naxja.org/forum/showthread.php?t=920779&highlight=poor+mans+open+cooling+conversion

closed cooling will not take any coolant

clunk

NAXJA Forum User

hiimmred

NAXJA Forum User

SINCITY192

NAXJA Forum User

winterbeater

NAXJA Forum User

clunk

NAXJA Forum User

SINCITY192

NAXJA Forum User

winterbeater

NAXJA Forum User

outlander

NAXJA Forum User

Similar threads