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Rattle/ticking sound above 4000 rpm

Originally Posted by jameZ_10 ... If I smoothly upped the Rpm the sound never showed up. If I romped the throttle it showed up. ... Engine is moving under load

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Old 10-15-2016, 10:05 AM   #1 (permalink)
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Originally Posted by jameZ_10 View Post
... If I smoothly upped the Rpm the sound never showed up. If I romped the throttle it showed up. ...
Engine is moving under load and causing a moving part to come in contact with something?
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Old 10-15-2016, 11:00 AM   #2 (permalink)
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Quote:
Originally Posted by SouthArk370Z View Post
Engine is moving under load and causing a moving part to come in contact with something?
Moving part inside the engine or something rattling under the hood?
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Old 10-15-2016, 11:59 AM   #3 (permalink)
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Moving part inside the engine or something rattling under the hood?
External - belt, pulley, manifold, heat shield, &c.
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Old 10-15-2016, 12:22 PM   #4 (permalink)
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With window down the sound is non existent. Lol. Only time I hear it is with with windows up and no radio
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Old 10-15-2016, 01:19 PM   #5 (permalink)
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So if it were internal it would rattle at all times under a load or not?
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Old 10-15-2016, 01:31 PM   #6 (permalink)
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is your coolant or oil temp climbing up? sound's like you got some bad fuel.....
My ~Z~has only had e-free 93 the past 65k miles...with exception of a couple times/ & i heard the injectors clicking.
I know it's hard to get in different states & harder in mine.
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Old 10-15-2016, 06:38 PM   #7 (permalink)
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I have e- free 93 here in my town. Last 2 tanks came from Murphy USA (Walmart) 93 10%
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Old 10-15-2016, 06:38 PM   #8 (permalink)
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No temp rises. All normal
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Old 10-16-2016, 05:02 PM   #9 (permalink)
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I tracked the car today. She ran dead on as usual the noise wasn't noticeable at the track ( concentration) however no issues so I give up. If it doesn't affect the car then I'll chalk it up to me just being paranoid to a sound that was always there but just now noticed
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