Rough idle and Loud ping upon start-up - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 12-23-2011, 08:02 AM
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Rough idle and Loud ping upon start-up

I just bought a 2001 530i, knowing it needed a few things. It has a rough idle but the tach indicates a relatively steady RPM. (It feels like it might die at any moment.) Also, this morning I started it up and there was a loud ping sound from the engine that pinged about every 5 seconds, it did this for about 2-3 minutes and stopped. Can anyone give me some suggestions?
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#2 (permalink) Old 12-23-2011, 09:52 AM
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Update

This time I started the car and it only made that ping sound about 10 times. Also the if I rev up the engine, it will drop to 500rpm and climb up to about 800rpm then it has a rough idle after that.
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#3 (permalink) Old 12-23-2011, 03:32 PM
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Is it more like a loudish "Tick" ?


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#4 (permalink) Old 03-02-2012, 02:41 PM
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Hmmm. Having the same type of problem. Any updates?
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