Strange Noise - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 12-27-2004, 07:18 PM   #1 (permalink)
You Can Has A Custom Title!!
 
RedlinedRU's Avatar
 
Join Date: Sep 2004
Location: Radford, Virginia
Car:
Posts: 2,335
Photos:
RedlinedRU is an unknown quantity at this point
Send a message via AIM to RedlinedRU
hey, my e36 started making a strange noise when it warms up. you can only hear it when you are at idle, and with the stereo off because it isn't loud at all. the only way i can describe it is that every 7 seconds or so, it makes a slight "umph" noise almost like a small pump was turning on, or a bubble in a fluid resovoir was being popped. its hard to describe, and doesn't happen when engine is cold. the computer says everything is fine, but this is bothering me b/c it wasn't doing it before. thanks in advance for any help. N
__________________

<span style='color:green'>
AMG can't build an NA engine that can compete with M engines, so they stick in a supercharger and say their cars are faster. BMW could simply do the same, but they don't out of principle.</span>
RedlinedRU is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-27-2004, 08:08 PM   #2 (permalink)
350z
 
Join Date: Nov 2003
Car: 03 Nissan 350z Track
Posts: 4,932
Photos:
bigred318 is an unknown quantity at this point
Send a message via MSN to bigred318 Send a message via Yahoo to bigred318
maybe try to get a clip of it.. i have never personally heard this before, also it would help if you could locate what side of the engine etc... pop the hood and listen

David
__________________
**BAKER POW REPORT**
bigred318 is offline   Reply With Quote
Old 12-27-2004, 09:45 PM   #3 (permalink)
2nd Gear Member
 
Linds's Avatar
 
Join Date: Sep 2004
Location: PA
Car:
Posts: 506
Photos:
Linds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond reputeLinds has a reputation beyond repute
Send a message via AIM to Linds
I have the exact same noise in my car (99 323is). Maybe it's a problem with these similar years/models. The only thing that is different about mine is that sometimes it's a double pop. Kind of sounds like a heartbeat...really weird. If you find out what it is let me know.
__________________
Coming soon...
Linds is offline   Reply With Quote
Old 12-28-2004, 10:06 AM   #4 (permalink)
You Can Has A Custom Title!!
 
RedlinedRU's Avatar
 
Join Date: Sep 2004
Location: Radford, Virginia
Car:
Posts: 2,335
Photos:
RedlinedRU is an unknown quantity at this point
Send a message via AIM to RedlinedRU
hmm, thats crazy. if/when I find out, i will let you all know for sure. You're right, it does sound more like a pop, than anything else.
__________________

<span style='color:green'>
AMG can't build an NA engine that can compete with M engines, so they stick in a supercharger and say their cars are faster. BMW could simply do the same, but they don't out of principle.</span>
RedlinedRU is offline   Reply With Quote
Old 12-28-2004, 12:15 PM   #5 (permalink)
2nd Gear Member
 
Join Date: Dec 2003
Location: California
Car:
Posts: 448
Photos:
frank3 is an unknown quantity at this point
Where is the noise coming from? Could it be the noise of some vacuum mechanism kicking in, like the heater directional doors behind the dash that shift the heat from feet to defrost? If this is it and it's recurring, then you have some sort of minor vacuum leak that causes the door to keep closing at low idle (but disappears at higher vacuum levels).

This is a total guess...knowing where the noise comes from will help pinpoint.
__________________
<span style='color:green'>1994 325i </span>- - - 75,000 mi.
No mods - - - very happy as is!
<span style='color:green'>1995 525i </span>- - - 154,000 mi.
No squeaks or rattles... unreal!
frank3 is offline   Reply With Quote
Old 12-31-2004, 12:37 PM   #6 (permalink)
You Can Has A Custom Title!!
 
RedlinedRU's Avatar
 
Join Date: Sep 2004
Location: Radford, Virginia
Car:
Posts: 2,335
Photos:
RedlinedRU is an unknown quantity at this point
Send a message via AIM to RedlinedRU
that may well be what it is.....considering it didn't do it in the fall when I didn't have the heater running. its a very hard noise to pinpoint, but it sounds like its very close to the firewall somewhere.
__________________

<span style='color:green'>
AMG can't build an NA engine that can compete with M engines, so they stick in a supercharger and say their cars are faster. BMW could simply do the same, but they don't out of principle.</span>
RedlinedRU is offline   Reply With Quote
Old 12-07-2005, 08:14 PM   #7 (permalink)
n00b
 
Join Date: Nov 2005
Car:
Posts: 6
Photos:
Tiny2u is on a distinguished road
Can anyone help me out with this problem.. my 97 328i is making this same "heartbeat" noise when idling at temp.

Is it serious? i really don't want to take it to the stealer and i just moved to RI so i don't trust anyone else.

Anyone?
Tiny2u is offline   Reply With Quote
Old 12-07-2005, 08:38 PM   #8 (permalink)
drz
Administrator
 
drz's Avatar
 
Join Date: Dec 2004
Location: Tee Ex
Car: zhp
Posts: 12,129
Photos:
drz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond reputedrz has a reputation beyond repute
Send a message via AIM to drz Send a message via MSN to drz
It sounds to me like it is the heater valve. I sits right in front of the driver's seat. I describe it as a cyclical clicking. I was once able to stop and follow the noise. I followed it to the heater valve, where I could feel the vibration coming synchronously with the noise. I purchased a replacement, but have not yet put it in. I have had this situation going since the late summer. I will be putting in the new valve in the next couple of weeks.

I hope this helps.
__________________
drz is offline   Reply With Quote
Old 12-07-2005, 08:48 PM   #9 (permalink)
1st Gear Member
 
bimmerboy328i's Avatar
 
Join Date: Apr 2004
Car:
Posts: 292
Photos:
bimmerboy328i is an unknown quantity at this point
Send a message via AIM to bimmerboy328i
Quote:
Originally Posted by drz
It sounds to me like it is the heater valve. I sits right in front of the driver's seat. I describe it as a cyclical clicking. I was once able to stop and follow the noise. I followed it to the heater valve, where I could feel the vibration coming synchronously with the noise. I purchased a replacement, but have not yet put it in. I have had this situation going since the late summer. I will be putting in the new valve in the next couple of weeks.

I hope this helps.
That is exactly what it is.
__________________
- 97 M52 Beast - Vortech V-1 Supercharger Setup - Dinan Software - 28.8lb Injectors - 9psi - ZKW's - OEM Clears - DoubleSpoke II's - OEM M3 Spoiler - OEM M3 Front Bumper - 20% Tint - CCFL Angel Eyes - 6K Xtec HIDs in ZKWs - 6k H1 based D2S HID's in Foglights - Bilstein Sport Shocks - Eibach Sportline Springs - Cosmos Racing CAI - M50 Manifold Swap - UUC Motorwerks SystemU Exhaust - Fan Delete - 3.15 LSD -
bimmerboy328i is offline   Reply With Quote
Old 12-09-2005, 02:04 PM   #10 (permalink)
n00b
 
Join Date: Nov 2005
Car:
Posts: 6
Photos:
Tiny2u is on a distinguished road
Thanks guys, Is this a major thing of is it something i can let go for awhile? What caused it to break?

Also, is this a DIY job or am i going to have to take it to the stealer?
Tiny2u is offline   Reply With Quote
Old 12-11-2005, 12:21 PM   #11 (permalink)
3rd Gear Member
 
kyle_baker's Avatar
 
Join Date: Jun 2004
Location: Raleigh, NC
Car:
Posts: 692
Photos:
kyle_baker is an unknown quantity at this point
Send a message via AIM to kyle_baker Send a message via MSN to kyle_baker Send a message via Yahoo to kyle_baker Send a message via Skype™ to kyle_baker
probably not a major deal, but it will continue to annoy you, lol, so all depends on how long you can handle the noise. personally i try to fix all little annoyances like that asap, but it really isn't that big of a deal

i think drz is saying it is a DIY, i'm sure he will share some instructions for you once he finishes replacing his.

Last edited by kyle_baker; 12-11-2005 at 12:24 PM.
kyle_baker is offline   Reply With Quote
Old 12-15-2005, 12:46 PM   #12 (permalink)
1st Gear Member
 
Join Date: Jan 2005
Location: Clemson, South Carolina
Car: 1993 325i
Posts: 271
Photos:
victorgallas is an unknown quantity at this point
Send a message via ICQ to victorgallas Send a message via AIM to victorgallas Send a message via MSN to victorgallas
No vaccuum Lines

Quote:
Originally Posted by frank3
Where is the noise coming from? Could it be the noise of some vacuum mechanism kicking in, like the heater directional doors behind the dash that shift the heat from feet to defrost? If this is it and it's recurring, then you have some sort of minor vacuum leak that causes the door to keep closing at low idle (but disappears at higher vacuum levels).

This is a total guess...knowing where the noise comes from will help pinpoint.

Hey i just wanted to clarify something about BMW's ac systems.

They do not use vacuum lines and actuators to move vent flaps, this is done electrically by means of servo motors.

The early e36 with rotary selectors have 3 servoe motors.
The electronic unists use 5 servo motors.
they are small round, flat bosch unit.

What can happen to them after a while is that they get dirty inside and so they dont give their position reading properly to the ac computer. to fix it take the motor out, is normally clipped in, then carefully open the back cover and using electronic spray cleaner clean the all the electronic contacts..

this will help the electrical, and if you want to lube a little bid any mechanical parts, dont go too crazy on the lube as this will rather make its way back to the elctronics on hot days.


well this is just my input.

about the clicking noise, it is the heater valve.
its a doul solenoic unit and the cycles is the way the ac ecu control the heat input to the heater core by Pulse With Modulation. By changing the time that valve stays open the ecu can control how much fluid goes into the heater core therefore controling heat temperature.

I found out that after a while this valve get a little sticky and so they make noise when moving, you can replace it or just live with it..

well have a good one.


victor
__________________
You are a BMW driver when you become part of the &quot;Ultimate Driving Machine&quot;

Fraude an Fahren
BMW &gt; Bayerische Motorenwerke

Auf Viedersehen der herr

www.clemsonfsae.com
victorgallas is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Strange Noise 99bmw 5-Series (E12,E28, E34, E39, E60) 1 06-25-2005 12:22 AM
Strange Noise... Help!... M3wannabe2004 3-Series (E36) 6 06-17-2005 09:23 AM
Help !! E46 328i Strange Noise !!!! MohanUK 3-Series (E46, E90) 2 10-14-2004 03:27 PM
Strange Noise 93 325i 3-Series (E36) 4 10-11-2004 11:31 AM
Strange Rear Wheel Noise? Clint_M 3-Series (E36) 1 10-04-2004 06:37 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 02:42 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.