Noise on idle and acceleration - Mazda3 Forums : The #1 Mazda 3 Forum
 
LinkBack Thread Tools
post #1 of 7 (permalink) Old 03-26-2011, 12:38 AM Thread Starter
Moped Rider
 
Join Date: Mar 2008
Posts: 12
Noise on idle and acceleration

My 2004 2.0 Mazda3 has a noise that almost sounds like a rod knock on idle. It also increases speed with the acceleration of the car. There is a link to a video of it below. Judging by the video it sounds like its coming from the front left but I'm not 100% sure. Any ideas?

Mazda3 engine noise
skitzo315 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 03-26-2011, 11:47 AM
Bicycle Rider
 
Join Date: Mar 2011
Location: oregon
Posts: 8
Re: Noise on idle and acceleration

As crazy as it seems It could be an exhaust leak. Or a valve.

When It Rains, It Pours
mrlindeman is offline  
post #3 of 7 (permalink) Old 03-26-2011, 05:58 PM
Le Mans: GT Class
 
Join Date: Aug 2010
Location: Kamloops, B.C.
Posts: 614
Re: Noise on idle and acceleration

Well I know that some people have said before that the intake manifold makes noise. I think they were talking about the flaps. But if it's increasing with speed that makes me believe it would be a rod knock because I don't think that the intake manifolds noise would increase with speed. Maybe someone else with more knowledge than me can chime in.
chris22 is offline  
post #4 of 7 (permalink) Old 03-26-2011, 06:50 PM
Short Track Racer
 
Join Date: Jan 2011
Location: VA BEACH
Posts: 178
Re: Noise on idle and acceleration

Sounds to me like a slight rod knock. Try getting it diagnose at Mazda dealership.
fjaysay1017 is offline  
post #5 of 7 (permalink) Old 03-27-2011, 12:39 AM Thread Starter
Moped Rider
 
Join Date: Mar 2008
Posts: 12
Re: Noise on idle and acceleration

I was hoping to avoid the dealer but I'll bite the bullet and take it in when I get some extra money. I'll post back when I do.
skitzo315 is offline  
post #6 of 7 (permalink) Old 03-27-2011, 01:30 AM
Grand Am Series
 
Join Date: Sep 2008
Posts: 391
Re: Noise on idle and acceleration

Did you do the AIT mod? Sounds like to me its a valve tick. Which it seems mazdas a notorious for.

[img width=289 height=100]http://i130.photobucket.com/albums/p252/omegazarroc/mazda3i-1-1.jpg[/img]
dknott is offline  
post #7 of 7 (permalink) Old 03-28-2011, 12:01 PM
BR
Moped Rider
 
Join Date: Nov 2009
Location: Arlington TX
Posts: 23
Re: Noise on idle and acceleration

how many miles on the car? are you loosing any oil?

at 140k miles on mine, it started loosing oil as the oil ring on #4 was gunked up and and i lost the rod bearing on #4, it spun and doubled itself up and was actually tapping on the head, thus sounding like valve noise.....

I was told it was a valve noise as well, ended up rebuilding the motor.
BR is offline  
Sponsored Links
Advertisement
 
Reply

  Mazda3 Forums : The #1 Mazda 3 Forum > Technical / Model / Performance > Powertrain 2004-2009 Mazda3 > Stock Issues

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mazda3 Forums : The #1 Mazda 3 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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

 
For the best viewing experience please update your browser to Google Chrome