2013 OPTIMA LX loud engine fluttering sound
by, 09-12-2013 at 04:51 PM (3303 Views)
I just purchased a 2013 OPTIMA LX and have noticed that the engine makes a loud, very rapid fluttering sound that can be heard at the exhaust and under the hood at the exhaust manifold. The fluttering sound is loud enough to be heard 20-30 feet from the car. I don't think it is valve noise since it is not a clatter but more of a flutter. I may be dating myself but it sounds line the rotor in the distributor of an old points/condensor engine from the 60s and 70s but much, much louder. Another example might be a VERY large moth flapping agains a window. The engine is a 2.4 liter and I have 1,100 miles on it but the noise has been there since I purchased the car a month ago. Is this characteristic of this engine or is something not right?
Thanks to all in advance for your expert advice.