Unknown Kalampag (Not Suspension-related)

**jut703** · November 23rd, 2015 11:30 AM

My 2004 Mazda 3 has developed a rattle that can be heard when the rear left tire passes through a road imperfection. It sounds like there's something in the trunk that's bouncing around.

Of course, first thing I did was empty my trunk - rattle was still there. Then, I removed the jack, spare tire, and all tools, rattle was still there. I checked all clips, rattle was still there.

Next step was to have the suspension checked. I changed my shocks, but the rattle was still there. I even changed my stab links, but rattle remained (waste of money oh well). I also tried a new shock mount, new shock boot, and new lateral links, but the problem still persisted.

I already had 2 shops look at the suspension and both said that it was fine. So now, I'm quite stuck as I dunno what to check next.

One shop suggested that there might be some screws stuck in between the metal panels of the car that shakes around when passing through road ruts. Oddly enough, we can't reproduce the problem by bouncing the rear when it's stopped. You only hear it when the car is moving and the left rear tire passes encounters potholes.

If anyone has any idea on what the problem could be, or could suggest a shop that specializes on issues like this, I'd gladly appreciate the help. [emoji4]

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**sirkosero** · November 23rd, 2015 11:36 AM

My cousin had a similar problem but for a 2008 city. Car stayed weeks sa casa and also sa honda spa. Never found the problem.

Then dinala nya sa cruven. May naipit pala maliit na bato somwhere sa suspension arms. Tinanggal lang yung bato. Okay na.

**Monty** · November 23rd, 2015 11:38 AM

Have you checked the exhaust? Could be a worn out exhaust mount.

**jut703** · November 23rd, 2015 11:46 AM

Originally Posted by sirkosero

My cousin had a similar problem but for a 2008 city. Car stayed weeks sa casa and also sa honda spa. Never found the problem.

Then dinala nya sa cruven. May naipit pala maliit na bato somwhere sa suspension arms. Tinanggal lang yung bato. Okay na.

Thanks for the tip. How's the pricing of Cruven? Might bring it there for diagnosis.

Originally Posted by Monty

Have you checked the exhaust? Could be a worn out exhaust mount.

Had it checked already, the rubber mounts are still in good condition.

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**oj88** · November 23rd, 2015 12:04 PM

Other things to look at is the trunk mechanism (hinge/latch), tailights, bumper mounts/clips... technically, everything that isn't welded on.

On older cars, body flexing or body panels moving against its mount because of flexing, can sometimes cause creaks and 'tick' noises when certain corners of the vehicle is subjected to stress.

This may sound funny and draconian but have you tried locking yourself or an assistant inside the trunk and have you/someone drive the car (carefully) over a pothole? That will help localize the source of the rattle. But do this in a controlled environment (parking lot, driveway, or a seldom-used street).

**jut703** · November 23rd, 2015 12:11 PM

Originally Posted by oj88

This may sound funny and draconian but have you tried locking yourself or an assistant inside the trunk and have you/someone drive the car (carefully) over a pothole? That will help localize the source of the rattle. But do this in a controlled environment (parking lot, driveway, or a seldom-used street).

Funny, but we actually tried that out of desperation. To be a bit humane though, I opened the 60/40 split rear seats to get some air into the trunk. [emoji16]

The guy isolated the noise to the left rear quarter panel. We tried checking all the suspension bits and they checked out fine.

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**oj88** · November 23rd, 2015 12:21 PM

What did the noise sound like (tick, bang, tok, etc.)? How do you reporduce it or what kinds of bumps/potholes does it respond to and at what speed?

Is it a one-time tick or does it dribble?

Describe it as detailed as possible.

**sirkosero** · November 23rd, 2015 12:17 PM

Originally Posted by jut703

Thanks for the tip. How's the pricing of Cruven? Might bring it there for diagnosis

My cousin just gave a tip to the mehanic. Check up lang daw ginawa sabi ng mechanic

**gundam** · November 23rd, 2015 03:24 PM

Disc brake ba rear nyan.
In my sentra, although sa front, rattling sound pag nag loose na yung pin ng caliper?

**jut703** · November 23rd, 2015 08:46 PM

I tried riding the brakes while going through potholes - no difference compared to no brakes. May kalampag pa rin. [emoji20]

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