Loud Ticking Sound - Help please...

Kahin · 11-02-2009, 07:54 PM

I own a 2000 BMW 323i with 113,000 miles, so here is my problem..,

Recently I had my uncle replace the coolant tank because the previous tank was damaged and was leaking (crack in the tank), once the new tank was installed the next day it started leaking again (Coolant light went ON). I thought no big deal and I filled the tank with coolant (Light went OFF) and started driving like this for about a week.

Now there's a new problem that I'm dealing with and cannot find out what it is. When the car is running it makes a very loud noise (sounded like a fan was hitting something plastic, but that wasn't it).

I took off Radiator, Fan, 2 Belts (Engine & A/C), Coolant Tank, and checked if the noise was gone but the problem wasn't fixed and still made a loud noise. So I turned the car off and checked the all the pulleys and it seemed they were working perfectly.

This all seemed to happen since the Tank was replaced... Thanks so much!

323i matt · 11-02-2009, 10:30 PM

i think its something to do with the exhaust or air con maybe ?

mine makes a noise when started but then goes off and the previous owner told me its something to do with the exhaust and air gasses and the air con setting itself ??

BlackBimmer2002 · 11-03-2009, 09:58 AM

Check your spark plugs. I had 1 loose plug that caused the car to tick. I tightened it up and noise went away.

Kahin · 11-12-2009, 07:49 PM

Here's a video of what I'm hearing maybe this will explain a lot better.

bmwguyNC · 11-12-2009, 08:42 PM

Waterpump is about to go..impeller coming apart! might as well get one! My friends just did the same thing. Improper circulation of coolant also reason your expansion tank failed!

alpine86 · 11-12-2009, 08:56 PM

alternator pulley???

Kahin · 11-18-2009, 08:00 PM

Waterpump and Alternator pulley aren't the problem I've checked. I have had 2 different mechanics come check out the car one said it was the starter, and the second says its the Flywheel bearing...

11-02-2009, 07:54 PM	#1
Kahin Registered User Join Date: Aug 2009 Location: Everett, WA Posts: 3 My Ride: 2000 BMW 323i View My Garage	Loud Ticking Sound - Help please... I own a 2000 BMW 323i with 113,000 miles, so here is my problem.., Recently I had my uncle replace the coolant tank because the previous tank was damaged and was leaking (crack in the tank), once the new tank was installed the next day it started leaking again (Coolant light went ON). I thought no big deal and I filled the tank with coolant (Light went OFF) and started driving like this for about a week. Now there's a new problem that I'm dealing with and cannot find out what it is. When the car is running it makes a very loud noise (sounded like a fan was hitting something plastic, but that wasn't it). I took off Radiator, Fan, 2 Belts (Engine & A/C), Coolant Tank, and checked if the noise was gone but the problem wasn't fixed and still made a loud noise. So I turned the car off and checked the all the pulleys and it seemed they were working perfectly. This all seemed to happen since the Tank was replaced... Thanks so much!

11-03-2009, 09:58 AM	#3
BlackBimmer2002 Registered User Join Date: May 2007 Location: New York Posts: 15 My Ride: 2002 325ci View My Garage	Check Spark PLugs Check your spark plugs. I had 1 loose plug that caused the car to tick. I tightened it up and noise went away.

11-12-2009, 08:42 PM	#5
bmwguyNC Registered User Join Date: Jul 2006 Location: Greenville, NC Posts: 80 My Ride: 02 325i orient blue View My Garage	Waterpump is about to go..impeller coming apart! might as well get one! My friends just did the same thing. Improper circulation of coolant also reason your expansion tank failed! Last edited by bmwguyNC; 11-12-2009 at 08:44 PM.

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11-02-2009, 10:30 PM	#2
323i matt Registered User Join Date: Oct 2009 Location: grimsby UK Posts: 170 My Ride: 323i se 4 door View My Garage	i think its something to do with the exhaust or air con maybe ? mine makes a noise when started but then goes off and the previous owner told me its something to do with the exhaust and air gasses and the air con setting itself ??

11-12-2009, 07:49 PM	#4
Kahin Registered User Join Date: Aug 2009 Location: Everett, WA Posts: 3 My Ride: 2000 BMW 323i View My Garage	Here's a video of what I'm hearing maybe this will explain a lot better.

11-12-2009, 08:56 PM	#6
alpine86 Registered User Join Date: Jul 2009 Location: Canada Posts: 41 My Ride: E46 2doors View My Garage	alternator pulley???

11-18-2009, 08:00 PM	#7
Kahin Registered User Join Date: Aug 2009 Location: Everett, WA Posts: 3 My Ride: 2000 BMW 323i View My Garage	Waterpump and Alternator pulley aren't the problem I've checked. I have had 2 different mechanics come check out the car one said it was the starter, and the second says its the Flywheel bearing...