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(1999 Oldsmobile Cutlass)
in Newport News, VA on October 06, 2010
my 1999 cutlass oldsmobile is leaking coolant i have had the gaskets under the enginge changed, thermostat replaced the upper lower rad hoses are new. There is a new expansion tank the leak apears to be by the espansion tank the whole under body is wet on that side i don't know where else to check it has been pressured checked already.
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Popular Answer
on October 06, 2010
Check the hose that comes from the radiator cap area and goes to the expansion tank
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on October 06, 2010
I just worked on a simular problem. I finally tracked it down. Someone added green anti freeze to dex cool and caused a sticky mess. I had to do a chemical flush on the cooling system, change the radiater cap, the thermostat and make sure the neck on the over bottle neck is not full of sticky gunk.
Whats happening is the sticky anti freeze got in the radiator cap and couldn't stop the anti freeze from coming out the overflow. The engine was also overheating.

Look in the overflow bottle and look for and feel for sticky or lumpy stuff.
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