Car sounds like jet when starting up. - E46Fanatics E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 09-26-2011, 12:07 PM   #1
thetotalthom
Registered User
 
Join Date: Jul 2010
Location: Mentor, Ohio
Posts: 37
My Ride: 325XiT, ZHP, 03 M3
Car sounds like jet when starting up.

Hey guys! I'm new to the forums (long time browser though!). I've searched and search but I haven't been able to find any information on my problem. When I cold start my car, a fan comes on and makes a loud, airplane like sound. Once the engine is warmed up, the fan shuts off and car sounds normal. Any ideas? I'm thinking it's something with the bearings in the hvac fan but, it's just a guess. Thanks!
thetotalthom is offline   Reply With Quote
Old 09-26-2011, 12:12 PM   #2
secono330ci
Registered User
 
Join Date: Dec 2008
Location: NJ>>>>FL
Posts: 3,025
My Ride: 04' 330ci/15' A3 TDI
Is it a hissing sort of sound? I'm pretty sure the secondary air pump is making that on start ups.
__________________

Quote:
Originally Posted by PEI330Ci View Post
Oh...and the "$300 here, $600 there" scenario will turn into "$3000 here, $6000 there". I've had an enourmous amount of labor put into my car. (Luckily the majority of it was done by myself) Also, I've spent over $5k on my tool set since I started my project. You've been warned...
secono330ci is offline   Reply With Quote
Old 09-26-2011, 12:57 PM   #3
thetotalthom
Registered User
 
Join Date: Jul 2010
Location: Mentor, Ohio
Posts: 37
My Ride: 325XiT, ZHP, 03 M3
No hissing at all. I'll try and post a video link this afternoon of the sound.
thetotalthom is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-26-2011, 07:59 PM   #4
BimmerBrakes
The Brake Newbie!
 
Join Date: Feb 2010
Location: DFW, Tx
Posts: 1,146
My Ride: 2005 ZHP BMW
Send a message via AIM to BimmerBrakes
Sounds like Secondary PUMP...
BimmerBrakes is offline   Reply With Quote
Old 01-02-2012, 07:24 PM   #5
thetotalthom
Registered User
 
Join Date: Jul 2010
Location: Mentor, Ohio
Posts: 37
My Ride: 325XiT, ZHP, 03 M3
Secondary air pump was the answer! Thanks for the help. Sorry it took me so long to respond.
thetotalthom is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Censor is OFF



All times are GMT -5. The time now is 07:25 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - VerticalScope Inc. All rights reserved.