Odd noise when applying throttle/accelerating - Club4G Forum : Mitsubishi Eclipse 4G Forums - 2006-2012 Eclipse Authority
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Old August 12th, 2020, 03:05 PM   #1 (permalink)
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Name: Richard
Join Date: Jan 2020
Location: Canada
Vehicle: 2007 Eclipse GS
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Exclamation Odd noise when applying throttle/accelerating

[ 2007 GS 5spd Manual ]

Hey all. A few weeks ago I was driving slowly in 1st gear (clutch fully engaged) and I gave it a good punch of gas and let down smoothly. Ever since then, there has been a noise I can't figure out.

- Sounds like a belt turning/humming.
- Starts very low and rises in pitch with the car's speed (becomes mainly audible around 2000rpm in 3rd)
- Only happens when I amapplying throttle
- Only happens when I am engaged in gear with the clutch at least somewhat/fully engaged (Noise doesn't happen with clutch pedal all the way in - even with the selector in gear)

I can't attach a URL to the video of the noise but hopefully I can DM it to anyone if you are willing to reply! It is kind of hard to hear but it comes in around 2000/2100 rpm in the video.

Please help! I can answer more questions if it helps find out what it is!

Ps. I got a transmission oil change since the noise started and it didn't change anything. Thanks.
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Old August 13th, 2020, 12:49 AM   #2 (permalink)
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Name: Garrett
Join Date: Feb 2018
Location: Wisconsin
Vehicle: 2007 Eclipse GS Spyder
Posts: 311
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Send me the video and I'll check it out for you, probably add it to your post if you're lucky.
Installed: DC Cold Air Intake | All Resonator Delete | Gutted Stock Exhaust | All Exterior + Interior LED

Maintenance: Timing belt-118k | Auto Trans Fluid-131k | Spark Plugs+Grommets+Valve Cover Gasket-125k | Passenger CV Axle-144k | Mag Oil Plug-153k | Tires-159k | Soft Top-160k

Future Work: ???

Last Oil Change-159,030 (7/5/2020)
Valvoline 5w20 Full Synthetic + STP S2808XL
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1st, 2007, 2007 gs, belt, belt noise, car, change, clutch, gas, gear, good, humming, humming noise, manual, noise, oil, oil change, pedal, questions, speed, throttle, transmission, video, while accelerating

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