RedFlame Posted January 31, 2015 Report Share Posted January 31, 2015 I have a 2005 Grand Prix and I need to change the radiator. How can i remove the the transmission cooler lines?? Quote Link to comment Share on other sites More sharing options...
rich_e777 Posted February 1, 2015 Report Share Posted February 1, 2015 Open ended wrench works pretty good on the metal lines coming off the radiator. IIRC its a 15mm or 16mm size threaded fitting. Quote Link to comment Share on other sites More sharing options...
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