One problem related to radiator has been reported for the 2004 Buick Regal. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Buick Regal based on all problems reported for the 2004 Regal.
My 2004 Buick Regal always had oil dripping from the engine since I bought it. The car ran beautifully for the 1st year with regular maintence. During a snow storm I noticed oil was leaking worse and starting to smell and smoke. Immediately I took it to get repaired. At this service the oil sending unit was replaced along with someother maintence on the fuel injectors I was also informed that oil was dripping from my engine gaskets and causing the smell. He informed me that it wasnt a problem for now and ill be ok. Months later I noticed the car running and idling rough while parked and accelerating. After inspection I noticed oil again from oil sending unit leaking and antifreeze leaking from the radiator. When I went to drive off the temp gauge was at hot after maybe 5 miles most. I called a tow truck and brought it for repairs. At this time I was informed I had serious problems. He rattled off many things wrong mainly my valve cover gaskets and intake gaskets and supercharge gaskets all need to be replaced with no choice I had it repaired. From that day my car never ran right again. The gaskets still leaked and the engine has a really loud noise while started. Finally ive parked it and use my other car for now. I have reciepts for all of this and still my car needs repairs. If you can come up with some kind of solution for this it would be greatly appreciated.