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    Large bang noise from back of car

    Hi Guys,

    On the way back home this evening, whilst stationary in traffic, I heard a loud bang from the back of the car. I got out, nobody had hit me and I could'nt see anything as it was raining hard. It felt internal, anyone had this happen?? Very confused/concerned.

    Re: Large bang noise from back of car

    I have felt a slight bang (hit) in my 2005 997 C2S, like if I got hit in the back. I happens about once a month usually when the car is stopped and I am about to start rolling. I spoke to my dealer and they said they would check during next maintenance.

    Re: Large bang noise from back of car

    Sometimes after I wash my car and stick it in the garage I get a loud bang when I reverse, but it's just the surface rust on the rotor giving way.

    Re: Large bang noise from back of car

    It's not unheard of for a Porsche to backfire. The other evening I started my drive home. It was chilly (for Texas, about 40 degress F). The engine was not quite 150 degrees water temp and the oil was just moving off 100 degrees. I had gone about 2 miles.

    As I approached a stop light, it turned yellow. I goosed the accelerator. The P-motor went 'Poom", then accelerated through the intersection. It was kind of like when a horse farts as you give it the leg to jump a fence.

    It's only done it once. I attribute it to the engine being given a big shot of fuel when it was only partially warmed up. Depending upon how loud a bang it was, it could be your P-car was just passing a little wind. You need to cut back on its grain and feed it more hay.

     
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