Help! Engine noises - Popping noise within the K&N Filter and Rattlimg noise

zedboy · 27-12-2005, 07:43 PM

Is anybody out thier that can help me? I currently own a 1997 323 Astina (4 cylinder) has 93000K on the odometer and having two strange engine noises.
1) Popping noise coming from the K&N filter. This happens usually when i am parking (turning the wheel when the motor is on iddle - pops about 6 times then it dissapears), it also happens when i am turning in corners slowly (pops once or twice). This noise is now happening more often (it rarely happened before - i guess the problem is getting worse). I have spoken to a couple of mechanics regarding this issue (they have never come across this problem before), was unable to help me.
2) Rattling (tapping) noise within the the engine bay. The rattling happens when I am giving the car a bit of a go between 4000rpm to 5000rpm (the car feels normal and not loosing any power) then the noise suddenly disappears.
Has anybody come across this problems with their astina before? I love my astina and just want the problem fixed.
Thanks. ZedBoy

mazdamanik · 27-12-2005, 07:46 PM

the noise could be ur tappets....how long since had an oil change? and poping from ur filter? i highly dought it, if the problem is occuring when ur turning i would say check ur CV joints mine does that same thing kinda of like a click rather than a pop

zedboy · 27-12-2005, 07:55 PM

I purchased the car when it only had 63000k on the odometer and change the oil & filter every 5000k. My CV Joints are fine (had them checked out) the noise is definitely coming from the pod filter (checked while the bonnet is open).

mazdamanik · 27-12-2005, 08:02 PM

hmmm never heard of that before ...sorry got no idea

Fro-Daddy · 27-12-2005, 08:13 PM

cant you usually hear the tappets on idle more-so then driving? could it be pinging?

bourbon · 27-12-2005, 08:13 PM

just a stab, could it be the air flow meter not the actual filter?

zedboy · 27-12-2005, 08:24 PM

How do i get rid of the pinging (if thats the problem)?

Cosmo Dude · 27-12-2005, 08:52 PM

1) You have some harmless resonance in the intake plumbing. The standard intake has counter measures so that you don't hear it. It is nothing
2) If the engine sounds like a can of spray paint being shaken then have the timing checked. In the interum use 96 octane fuel.

Shaggy · 28-12-2005, 06:38 AM

this has been discussed on club323f a few times, it happens to all 323f's with open air filters

I wouldnt worry about it

P.s mine does it to

Cosmo Dude · 28-12-2005, 06:57 PM

Oh yeah, the number 2 question could also be a buildup of carbon on the pistons. Drop into your local Subaru spare parts dept. and pick up a can of 'upper engine cleaner' follow the instructions and enjoy the sore finger

zedboy · 31-12-2005, 09:15 AM

Thanks guys, i will try out your suggestions.

RogerRamjet · 10-01-2006, 04:52 PM

hey man, my pod filter does that pop to. its been doing it for ages and no damage just anoying

27-12-2005, 07:43 PM	#1
zedboy Junior Member Join Date: Dec 2005 Posts: 4	Help! Engine noises - Popping noise within the K&N Filter and Rattlimg noise Is anybody out thier that can help me? I currently own a 1997 323 Astina (4 cylinder) has 93000K on the odometer and having two strange engine noises. 1) Popping noise coming from the K&N filter. This happens usually when i am parking (turning the wheel when the motor is on iddle - pops about 6 times then it dissapears), it also happens when i am turning in corners slowly (pops once or twice). This noise is now happening more often (it rarely happened before - i guess the problem is getting worse). I have spoken to a couple of mechanics regarding this issue (they have never come across this problem before), was unable to help me. 2) Rattling (tapping) noise within the the engine bay. The rattling happens when I am giving the car a bit of a go between 4000rpm to 5000rpm (the car feels normal and not loosing any power) then the noise suddenly disappears. Has anybody come across this problems with their astina before? I love my astina and just want the problem fixed. Thanks. ZedBoy

27-12-2005, 07:46 PM	#2
mazdamanik Senior Member Join Date: May 2004 Location: Rathmines Car: Was an Astina now a Commohore :-( Posts: 903 View Photos By: mazdamanik	the noise could be ur tappets....how long since had an oil change? and poping from ur filter? i highly dought it, if the problem is occuring when ur turning i would say check ur CV joints mine does that same thing kinda of like a click rather than a pop __________________ You can't race what you can't catch!!

27-12-2005, 08:02 PM	#4
mazdamanik Senior Member Join Date: May 2004 Location: Rathmines Car: Was an Astina now a Commohore :-( Posts: 903 View Photos By: mazdamanik	hmmm never heard of that before ...sorry got no idea __________________ You can't race what you can't catch!!

27-12-2005, 08:52 PM	#8
Cosmo Dude コスモ Join Date: Dec 2002 Location: Location: Vic Car: Mazda '95 Astina I4, '86 B2K and '10 3 MZR-CD Posts: 7,888 View Photos By: Cosmo Dude	1) You have some harmless resonance in the intake plumbing. The standard intake has counter measures so that you don't hear it. It is nothing 2) If the engine sounds like a can of spray paint being shaken then have the timing checked. In the interum use 96 octane fuel. __________________ My 'stina Hatch

28-12-2005, 06:38 AM	#9
Shaggy Junior Member Join Date: Dec 2004 Location: southwest coast, uk Car: 323f BA BPT TURBO Posts: 197 View Photos By: Shaggy	this has been discussed on club323f a few times, it happens to all 323f's with open air filters I wouldnt worry about it P.s mine does it to __________________ --------------------------------------------- *****TheMysteryMachine***** --------------------------------------------- http://www.club323f.com

27-12-2005, 07:55 PM	#3
zedboy Junior Member Join Date: Dec 2005 Posts: 4	I purchased the car when it only had 63000k on the odometer and change the oil & filter every 5000k. My CV Joints are fine (had them checked out) the noise is definitely coming from the pod filter (checked while the bonnet is open).

27-12-2005, 08:13 PM	#5
Fro-Daddy Senior Member Join Date: Jun 2005 Location: Brisbane Posts: 499 View Photos By: Fro-Daddy	cant you usually hear the tappets on idle more-so then driving? could it be pinging?

27-12-2005, 08:13 PM	#6
bourbon The Hairy Mod Join Date: Sep 2005 Location: southside ya'll and North Side, Brissy Car: MINI Cooper S 2003 Posts: 8,110	just a stab, could it be the air flow meter not the actual filter?

27-12-2005, 08:24 PM	#7
zedboy Junior Member Join Date: Dec 2005 Posts: 4	How do i get rid of the pinging (if thats the problem)?

28-12-2005, 06:57 PM	#10
Cosmo Dude コスモ Join Date: Dec 2002 Location: Location: Vic Car: Mazda '95 Astina I4, '86 B2K and '10 3 MZR-CD Posts: 7,888 View Photos By: Cosmo Dude	Oh yeah, the number 2 question could also be a buildup of carbon on the pistons. Drop into your local Subaru spare parts dept. and pick up a can of 'upper engine cleaner' follow the instructions and enjoy the sore finger __________________ My 'stina Hatch

31-12-2005, 09:15 AM	#11
zedboy Junior Member Join Date: Dec 2005 Posts: 4	Thanks guys, i will try out your suggestions.

10-01-2006, 04:52 PM	#12
RogerRamjet Junior Member Join Date: Feb 2004 Location: Rockhampton/Gladstone Car: 97 hardtop Posts: 68 View Photos By: RogerRamjet	hey man, my pod filter does that pop to. its been doing it for ages and no damage just anoying __________________ When Ramjet takes his proton pills the crooks begin to worry. "You see that crate over there? Yup. I can lift it. I can lift it even if it`s full of pigs. Iron pigs."