deville92 Posted July 21, 2010 Report Share Posted July 21, 2010 My car is leaking a lot under the radiator. when i park the car , it will leave like a line of coolant sometimes. I took it to get an oil change and they inspected the whole car. they told me that it might be the crossover lines under the radiator. is it the same as the lower radiator line sold at any part store?? Link to comment Share on other sites More sharing options...
adallak Posted July 21, 2010 Report Share Posted July 21, 2010 My car is leaking a lot under the radiator. when i park the car , it will leave like a line of coolant sometimes. I took it to get an oil change and they inspected the whole car. they told me that it might be the crossover lines under the radiator. is it the same as the lower radiator line sold at any part store?? Make sure it is not leaking from a cracked side radiator tanks (usually the inlet one). Take a flashlight and check for cracks. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
rockfangd Posted July 23, 2010 Report Share Posted July 23, 2010 it could also be leaking from the upper or lower radiator hose and running down the front onto the subframe. Is it coming more from the driver side? GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
rockfangd Posted July 23, 2010 Report Share Posted July 23, 2010 it could also be leaking from the upper or lower radiator hose and running down the front onto the subframe. Is it coming more from the driver side? GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
deville92 Posted July 23, 2010 Author Report Share Posted July 23, 2010 yea it was. i changed them both and it doesnt leak any more. Thanks Link to comment Share on other sites More sharing options...
rockfangd Posted July 24, 2010 Report Share Posted July 24, 2010 very good. Usually the leak originates at the thermostat housing, as it is cast and corrodes. Glad to see you fixed it. Did you see the commmon rub spot on the upper radiator hose towards the passenger side? GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
deville92 Posted July 24, 2010 Author Report Share Posted July 24, 2010 yea. i did Link to comment Share on other sites More sharing options...
vilhess Posted July 27, 2010 Report Share Posted July 27, 2010 My car is leaking a lot under the radiator. when i park the car , it will leave like a line of coolant sometimes. I took it to get an oil change and they inspected the whole car. they told me that it might be the crossover lines under the radiator. is it the same as the lower radiator line sold at any part store?? Make sure it is not leaking from a cracked side radiator tanks (usually the inlet one). Take a flashlight and check for cracks. I have a 1998 DeVille with the same "driver side coolant leak". The leak appears to be up near the upper hose but it remains dry after running and the leak continues. I have inspected the hose and it appears intact. I was curious about your comment about the "side coolant tank". Is it common for the radiator to lake near the drivers side just under the intake? I suppose I could just replace the hoses and see if that solves it.Thanks Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 27, 2010 Report Share Posted July 27, 2010 Take the hose off, check to see if the flange to the radiator is cracked. Look inside the nose for ruptures that send coolant out of the reinforcement channels in the walls, I have seen a hose look perfect and then have coolant leaking out of the end of the hose out of the reinforcement holes. Check the clamp for tightness and integrity Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
KHE Posted July 27, 2010 Report Share Posted July 27, 2010 Inspect the plastic tank on the driver's side of the radiator. That is the radiator inlet tank and with age and miles, it will crack and leak. If the inlet tanlk is cracked, any radiator shop can replace the tank for you for much less than the cost of a new radiator. The opposite (outlet tank) will last indefinitely. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 27, 2010 Report Share Posted July 27, 2010 When you inspect the tank that KHE describes look for dried white residue. It remains after the coolant evaporates through a crack, when hot coolant leaks it immediately vaporizes when it hits the atmosphere. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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