I found one with a bad head gasket cheap under 1000, its an 04 and good body and interior. I heard so many horor stories about these and their engines, I'm not sure its worth it. Is there a safe and reliable fix? I heard long ago it was a flaw when made that caused them all to go bad, around 25,000 miles or something like that. I rember the 4100 cadillac engines had the same problems in the 80's. any advice would be appreciated.