i have a 2000 cadilac seville sls, ive changed the thermastadt ,the fill jug, checked all the hoses . its eating water and heating up the heat will get hot for a few minutes then it will get cool again and be low on water, i have found no leaks visible im baffled
If you did not find visible leak at engine,it will be going out the exhaust,you must have ran it hot ,and damaged the head or intake gasket,crank car,and take rag to tail pipe,you will see it will be damp in a few second,s.
Ck the oil dip stick if oil is bubbly or whiteish then you know where your water is going
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