firstname.lastname@example.org Posted July 19, 2005 Report Share Posted July 19, 2005 I've had my 92 seville for about 6 months w/ out a single problem. Then, last week I took a 5 minute drive to the store. When I came out I discovered that I had a coolant leak. I turned the car on to discover that my coolant temp was 246 degrees F. I let the car cool down and drove back home. When I got there I could not figure out where the leak was located. My first idea was the thermostat, so I replaced it w/ an new oem thermostat. Drove the car a few times and everything seemed to be ok, except, at idle the tempt would rise to about 225-230 before the fan turns on. I figured maybe this is normal so i let it be. Then, this weekend I had to make a 5 hour trek to West Virginia. No problems, temp rarely past 210 degrees, until I reached my destination. I sat idle and watched my the temp rise above 240 once again. So I quickly popped my hood to discover that the leak wasn't exactly a leak. My antifreeze was boiling out of the top of the resivoir. I have a few ideas of what may be going on which I'll throw out there, but any advice would be greatly appreciated. 1. Old/Bad coolant or water in coolant - I have no idea when the last time the coolant system was flushed and the the coolant replaced. I think this may be at least part of the problem because the temp never past 250 degrees and I understand that antifreeze should not boil above somewhere around 260 degrees. 2. Bad radiator fan sensor/relay/etc. - The fan does not turn on at idle until at least 225 degrees, however I have not a clue whether this is normal or not. Link to comment Share on other sites More sharing options...
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