tomcad95 Posted December 2, 2012 Report Share Posted December 2, 2012 I am looking to change my radiator on my 4.9 '95 Deville. Does anyone know the sizes of the wrenches I need to use to remove the Oil cooler and Trans cooler Lines. Thanks. Link to comment Share on other sites More sharing options...
joeb Posted December 3, 2012 Report Share Posted December 3, 2012 I just did my 96 radiator. I assume rad connectors are similar on NS? Usual assortment, 5/8 up to 1". Even a super cheap rummage sale set for $5 will work. Ur just loosening hex nuts. Don't need a snap-on set to do that. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted December 4, 2012 Report Share Posted December 4, 2012 My 1997 ETC is all metric. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
joeb Posted December 4, 2012 Report Share Posted December 4, 2012 Uh, yea that might be true. Loosening a rusty 15 mm nut with a 5/8" wrench might cause the corners to round off. Or just use pliers? Link to comment Share on other sites More sharing options...
adallak Posted December 4, 2012 Report Share Posted December 4, 2012 Do not forget to install new o-rings in motor oil cooling line fittings. The old ones are flat and dry by now and will let the connection leak. You may need a big (35 mm??) socket to remove those big nuts attached to the side tanks. I guess, the driver side plastic side tank cracked. That's why you are replacing the radiator. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
joeb Posted December 7, 2012 Report Share Posted December 7, 2012 i had a leak but was not sure where it was Link to comment Share on other sites More sharing options...
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