RPM Situation,Need Help
#1
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I have a 2009 XF SC with 40k miles. Once and a while when I start the car the RPM goes right to 1000 and motor purrs nicely...however, especially over the last two weeks, when started it goes to 1000 rpms then drops to almost zero rpms, then jumps back to 1000.
What is causing this fluctuation?
What is causing this fluctuation?
#2
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#7
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Seems simple but just throwing out there since I had a similar experience, check your air filter(s). Had the same problem with other cars, drove fine when under load but at idle the airflow was choppy from the clogged filter and it made the rpms dip a bit. Also, if the airbox wasn't put back together leaving a hole for hot engine air to get in, it did the same.
Good luck either way, let us know what they find.
Good luck either way, let us know what they find.
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