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Hi Folks, My name is Jim, I'm happy to be a new member of the Caddy lovers club! I'm 54, been a caddy lover since my teens when my dad got his 4th or 5th caddy. In my 20s He came across a beautiful late 60s red convertible with a white leather interior which he slapped some plates on & let me take her for a ride to have my tooth pulled. He neglected/forgot to tell me the brakes were non existent brakes (master cylinder) so I used the emergency brake, made it to the dentist & home! Ever since that & my dad's subsequent Cadillacs I've been hooked on em. I've had 3 or 4 Devilles & I currently own a 97 I've had for 3 years. It has 214,000 miles on it. It was not well maintained, unfortunately. Most Cadillacs are big, solid built cars that have great comfort, quality motors & I feel safe having my wife drive one with our kids in the car. That was a funny post about trading the Caddy in for a Daewoo! I have a 2002 Nubiro that's a piece of, you know. That topic post was from 2004 I think. Anyways here's my situation. My 97 Deville 4.6 Nothstar Y is bubbling over 251-260 degrees. I have leaks in the pressure tank & have ordered a new one. My question to you experts out there is the leaking tank enough to cause overheating due to loss of pressure? I am not a mechanic though I can remove & replace parts, swap motors, etc. but I'm not a cooling system guru! I am concerned it may be a head gasket issue. I checked the exauste pipe, no moisture. Oil & coolant are clean, purge pipe open, water pump ok(replaced last year & removed cover to check), new stat, good hoses. I have not been able to perform a pressure test not have I checked for combustion gases yet. I think it's the pressure tank leak (at the filler neck & at the purge hose) causing overheating & certainly loss of coolant? Can you guys help me out please? Thank you!!
