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purging out air from cooling system

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Old Feb 27, 2014 | 08:44 AM
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1998xjspt
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From: Orlando/Winter Garden
Year: 1998
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Default purging out air from cooling system
Can't find the lil schrader valve or whatever it is that will allow me to release air from system. Any help?
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Old Feb 27, 2014 | 09:33 AM
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There is no such valve to release air from the stock cooling system.

The '98 will will self-purge (burp) air from the system during a couple of heat/cool cycles after filling with coolant.
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Old Feb 27, 2014 | 10:03 AM
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Just start it and let it come up to temp with the radiator cap off. Just keep an eye on the coolant level for the next 1 or 2 days.
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Old Feb 27, 2014 | 10:51 AM
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This Vid should help..shows how to burp out the air
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Old Feb 27, 2014 | 12:31 PM
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For 91+ model years it is not necessary to jack up or park on an incline when filling.
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Old Feb 27, 2014 | 12:33 PM
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Fill the rad all the way up, run it, fill as the coolant level falls at the rad cap.
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Old Feb 27, 2014 | 12:37 PM
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Year: 1989 xj sport 2dr
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Originally Posted by 1998xjspt
Can't find the lil schrader valve or whatever it is that will allow me to release air from system. Any help?
Run until thermostat opens fill to top your done . Fill coolant bottle level up that's it no jacking required .
Last edited by freegdr; Feb 27, 2014 at 12:40 PM.
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Old Feb 27, 2014 | 01:55 PM
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I like to squeeze the upper and lower hoses while im filling... Gets the air out faster IMO
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Old Feb 27, 2014 | 06:43 PM
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Originally Posted by JackJare9455
I like to squeeze the upper and lower hoses while im filling... Gets the air out faster IMO
Sounds a bit kinky to me.
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Old Feb 27, 2014 | 06:58 PM
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Originally Posted by MonacaYankee
Fill the rad all the way up, run it, fill as the coolant level falls at the rad cap.
Yes with the heater on full blast.
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Old Feb 27, 2014 | 07:21 PM
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Heater "on" for '96 down......not necessary for '97 up or earlier models where the heater control valve has been eliminated.
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Old Feb 27, 2014 | 07:40 PM
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Originally Posted by cruiser54
Sounds a bit kinky to me.
Just a little jacking and were there ...lol..
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Old Mar 1, 2014 | 12:17 AM
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Originally Posted by freegdr
Just a little jacking and were there ...lol..
you guys need more "me" time LOL
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Old Mar 1, 2014 | 08:37 AM
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......or they have too much. LOL
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