When mine failed, there were no warning signs or sounds.
I started my car in the parking lot on a hot day and headed home. Once the engine reached operating temp in traffic I heard a loud *BANG* and suddenly I had no cooling fans.
The fan blades had broken and I was lucky that they didn't perforate the radiator like has happened to others when they broke. I was able to limp home without overheating and got them replaced the next day.
I wouldn't wait to get them replaced if you still have the original ones on your car. It might cost you more than just the fans.
I started my car in the parking lot on a hot day and headed home. Once the engine reached operating temp in traffic I heard a loud *BANG* and suddenly I had no cooling fans.
The fan blades had broken and I was lucky that they didn't perforate the radiator like has happened to others when they broke. I was able to limp home without overheating and got them replaced the next day.
I wouldn't wait to get them replaced if you still have the original ones on your car. It might cost you more than just the fans.