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post #1 of 5 Old 11-22-2010, 07:48 PM Thread Starter
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Strange noise after engine shut off

I have a 2008 RT that has recently developed a strange noise when I shut off the engine. It lasts only around 10 seconds and sounds almost like an electronic beeeeeeeeeeeeeep. What I mean is it is not a quick beep but a long one. I first thought it might be fuel pumps shutting down but now I am not so sure. Anyone have any ideas before I take it in to the dealer$?
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post #2 of 5 Old 11-23-2010, 02:06 PM
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Where is the noise coming from?

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post #3 of 5 Old 11-23-2010, 02:17 PM
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Originally Posted by SRT8Tech View Post
Where is the noise coming from?
x2 I've noticed a similar type of sound when I shut of my car and it seems to come from the right side of the the car (passenger side)
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post #4 of 5 Old 11-23-2010, 02:35 PM
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Totally normal, Don't worry. Its a diagnostic of the O/2 sensors run by the PCM. The PCM makes a squel/beep noise when this test is being run. This happens when you turn the key off.
The PCM, may or may not make the noise, but it considered normal and not a problem to worry about. Test runs anywhere from 10 to 20 seconds when the key is turned off.

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post #5 of 5 Old 11-23-2010, 03:19 PM Thread Starter
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Thanks guys! Again it seems I have come to the right place.
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