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Old 04-11-2002, 06:59 PM   #1
2nd Gear Member
azn330i's Avatar
Join Date: Dec 2001
Location: Markham, Ontario, Canada
Posts: 266
Rattling/buzzing under the car

I've been noticing that there's been some buzzing underneath my car for a while. It happens when I'm in D and stopped. When its moving though, the sound is gone. Just wanted to ask if any one of you know what it is.
I know you guys say that T+C's service is bad but I went to them today to make an appointment to check this out for the 29th because it is close and I'll be away on a school trip by then. Anyways, the lady says that it might be the cataylist rattling but when I talked with Stephen Lau, he said its probably the gas pump? I'm confused.

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Old 04-11-2002, 08:37 PM   #2
2nd Gear Member
Join Date: Dec 2001
Location: Mississauga
Posts: 138
SOUNDS familiar!

check yer exhaust pipe heat shields cause sometimes they loosen up!
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Old 04-11-2002, 11:42 PM   #3
5th Gear Member
Join Date: Dec 2001
Location: Toronto, Ontario
Posts: 938
Sounds like the heat sheild
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Old 04-12-2002, 12:48 PM   #4
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i had a similar rattle under my car
i removed my heat shield and it's fine now

although i have many more rattles to track down =(
(inside the car though)

'94 Supercharged E36 325is (150,000 original km's)
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 04-24-2002, 04:50 PM   #5
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Join Date: Apr 2002
Location: somewhere in canada
Posts: 5
Check your fuel pump. You have two, One inside the tank, one outside. Park your car, leave it running. Listen rear your right rear wheel. If you hear a buzzing then your main fuel pump is questionable. The buzzing is caused by the auxillary fuel pump over working. I have had this on my e12, & e21 & e28.
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