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i also have had dexcool problems. i have no heat. the dealer says dexcool turned to gel and ruined heater core. warranty nor gm will cover the problem. dealer says i need new heatercore at 875.00. ive gone the entire (cold winter in chicago with no heat) but i have good news for all. i have a friend whos a mechanic. ( he says hes had several gm cars in with same problem) he said all i needed was an acid flush. (not regular flush, acid flush!!) i did it and i now have heat. why didnt gm offer me this option?. my advice though is to do it yourself or find someone who knows about cars because gm will charge you a fortune. the acid costs all of 25.00- 50.00. and i didnt have to replace the heatercore. if you live in the chicago suburbs i have a great mechanic. if not look into this. it will save you alot of money and best of all youll have heat!!!!
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