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Help! rpms fluctuating upon start up and weird sound.

 
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Old 10-29-2013, 12:32 PM
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Help! rpms fluctuating upon start up and weird sound.

Hey guys. I have a 2001 5th gen prelude. On a cold start and sometimes on a warm start my car rpms jump from 1200-1800. It goes up and down til the car is fully warmed up then the rpms go down. What can be causing this?

And also every time I turn my car on and after its warmed up, I start to drive it. Then it sounds like a fan is spinning really fast and it goes away. This only happens when I start to drive . I can hear it every time and it happens for only a split second. It comes from the left side of my engine bay. I'm not sure if its my radiator fan but it has never done this. Hopefully this isn't a bad thing.

Thanks for looking.
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Old 10-29-2013, 01:01 PM
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Re: Help! rpms fluctuating upon start up and weird sound.

Sounds like the FITV located by the throttle body.

the FINAL idle problem thread!!!!!

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Old 10-29-2013, 01:14 PM
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Re: Help! rpms fluctuating upon start up and weird sound.




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