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11-01-2001, 02:54 AM | #1 |
Scooby Guru
Member#: 6971
Join Date: May 2001
Chapter/Region:
NWIC
Location: Edmonds, Washington, USA
Vehicle:2008 WRX STi SSM |
WRX owners, please help with this experiment.
Get your car moving at about 20-25 MPH and shift into 4th gear. While in 4th, accerate up to 35 MPH and listen for a buzzing/rattling sound. If you hear it please report back here in this thread and note what RPM you hear the noise at.
I can reproduce the buzzing in any conditions if I use the technique above at about 2000-2300 rpm. I'm fairly sure that it's a heat shield rattling against something but I can't see what it is for the life of me! My guess is that RPM range produces the right frequency vibration to set the heat shields a rattlin.
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11-01-2001, 10:57 AM | #2 |
Scooby Specialist
Member#: 7893
Join Date: Jun 2001
Chapter/Region:
International
Location: Saint Louis
Vehicle:2010 F150 & Iron883 Husky TE449 + TXC250 |
Heat Shield
My heat sheild above the muffler rattles every once in a while, but I have aftermarket exhaust, so it is probally that. What makes more noise is the heat shield farther up, nearer the the last cat. I had some valuable gravel/dirt road training to prepare for, uh, emergencys....and stuff.... and i found small rocks or pebbles stuck in the shield by the last cat.
grant :monkey: |
11-01-2001, 11:09 AM | #3 |
Scooby Specialist
Member#: 5673
Join Date: Apr 2001
Chapter/Region:
BAIC
Location: Folsom, CA
Vehicle:05 LGT, 02 WRX Hellcat CTR LC500 GRC |
If you drive at 25mph in 4th gear, hell yeah its gonna rattle.
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11-02-2001, 04:37 PM | #4 |
Scooby Specialist
Member#: 6997
Join Date: May 2001
Chapter/Region:
South East
Location: lahrnceville, GA
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25mph in 4th gear! LMAO
try 25mph in 5th gear, uphill. |
11-02-2001, 04:45 PM | #5 |
Scooby Specialist
Member#: 10036
Join Date: Sep 2001
Chapter/Region:
NESIC
Location: 42.698N 71.135W
Vehicle:2008 Infiniti G35x Volvo XC90-T6 |
If I run my car at 20-25mph in 4th, I get a noise similar to what you described. That having been said, I'm usually only in second or third - or first - at that speed, so I don't notice it much.
David |
11-02-2001, 06:12 PM | #6 |
Scooby Specialist
Member#: 3803
Join Date: Jan 2001
Chapter/Region:
MWSOC
Location: SouthEast Michigan
Vehicle:07 Mustang GT Ford Crappy Paint White |
I had a similar rattle, it was coming from the defroster trim right at the edge of the windshield. (the piece you see through the windshield withthe vin on it) It was very easy to hold it down and turn the rattle on/off. just reach forward when it is happening and apply a bit of pressure. This pops off fairly easily, and I used some foam to isolate several areas, like the ledge near each clip, and the edge on the I/P where they meet up.
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11-02-2001, 06:26 PM | #7 |
Scooby Guru
Member#: 717
Join Date: Jan 2000
Chapter/Region:
NESIC
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Accelerate to 8 mph in 5th gear.....do you hear a lugging sound?
Markus, are you serious??? |
11-02-2001, 09:33 PM | #8 |
Scooby Newbie
Member#: 8907
Join Date: Aug 2001
Location: Penn Hills, PA
Vehicle:2002 Impreza WRX Sdn WR Blue Pearl |
My car doesn't want to accelerate at 25 MPH in 4th gear .... turbo is napping and the engine is lugging. The whole engine is shaking, the heat shield is rattling, my glove compartment is making a buzzing noise, and my trunk monkey is complaining! :monkey:
Any engine with a manual tranny forced to accelerate at a low RPM will cause everything loose to rattle! Not good for the engine bearings, either! |
11-02-2001, 09:34 PM | #9 | |
Scooby Guru
Member#: 6971
Join Date: May 2001
Chapter/Region:
NWIC
Location: Edmonds, Washington, USA
Vehicle:2008 WRX STi SSM |
Quote:
I didn't ask for smartass commentary or " lol ROTFLMAO", whatever, I asked for results. If you don't want to help stay the **** out of this post you ******** :monkey: |
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11-02-2001, 09:44 PM | #10 |
GC84Ever
Super Moderator Member#: 301
Join Date: Sep 1999
Chapter/Region:
NWIC
Location: WA
Vehicle:1970 FF-1 & '70 Van 02 WRX/01 RS |
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