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So my car drives fine just every once in a while while im driving if i put my clutch in or am just sitting at a light my rpms will either jump up a bit or stay at like 1100 or 1200 rpm and has an odd noise while doing it and i cant really explain the noise. Any ideas on what it could be?
 

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Check you idle air control valve, that has a lot to do with rpms at idle, there's a nice tutorial on YouTube on how to clean it.
 

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Had the same problem, I cleaned my MAF sensor, cleaned my TB, cleaned my iac, and seafoamed the engine, idle is smooth as smooth can be, and has stayed like that for 6+ months now
 

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So my car drives fine just every once in a while while im driving if i put my clutch in or am just sitting at a light my rpms will either jump up a bit or stay at like 1100 or 1200 rpm and has an odd noise while doing it and i cant really explain the noise. Any ideas on what it could be?
if its not any of those i had the same problem and it just ended up being a leak in my PCV valve. got a new one and it was
fine
 
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