dizzy-ttc Posted July 17, 2007 Report Share Posted July 17, 2007 Hi guys. I sold my 94 sts to a friend a few years ago., He is now having an overheating problem.He replaced the thermostat then took it to have the coolant flushed at a local shop. The shop tried but couldn,t flush it. They said the machine could not remove or add any coolant. Could there be a blockage somewhere? I read in another post of the purge line. We took the hose off at the overflow and had no flow. The other end of this line does not seem to be accessible. Any ideas would be greatly appreciated. Thanks Link to comment Share on other sites More sharing options...
Cadillac Jim Posted July 17, 2007 Report Share Posted July 17, 2007 Thermostat in backwards? It's easy to do in engines with coolant flow reversed in direction from older engines. -- 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...
Bruce Nunnally Posted July 17, 2007 Report Share Posted July 17, 2007 Jim's idea seems sound, if the owner just had the car serviced recently. Otherwise, I suppose you'd have to start investigating to determine if you have a complete blockage in a hose, or in the radiator. Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
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