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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: juggster on December 05, 2005, 12:57:19 AM

Title: Rattling, scrapping sound
Post by: juggster on December 05, 2005, 12:57:19 AM
Hey guys, last week i had a long drive in my sidekick, and on the return it started making a very metally rattling sound, sounds like it is coming out from under  the car,

It only made the sound when the engine was being pushed, (under stress!) liek when coming to a hill on the motorway, or else when the engine is cold and i am accelerating hard

Could this be my catilitic (spelling) and would it require changing?
If it does need changing, could i simply just cut it out, and weld in a straight pipe and still have my kick pass the mot? or would the emmissions really be affected?

just a lil more info on my kick:
1994-5 3 door tin top JLX
1.6lt, 8 Valve, 3 speed auto
Title: Re: Rattling, scrapping sound
Post by: pcguy on December 05, 2005, 02:55:43 AM
it could just be the heat sheild thats over the converter to protect the body/interior from getting to hot....
Title: Re: Rattling, scrapping sound
Post by: stalkTracker on December 05, 2005, 07:05:20 AM
The heat shield surrounding my catalytic converter wore out on the points that hold it around the converter and made the same rattling noise. I got 2 really big hose clamps and tightened it on there good. No more rattle.
Robert
Title: Re: Rattling, scrapping sound
Post by: CBTracker on December 05, 2005, 10:10:21 AM
I found my heatsheild on the manifold rusted completely off and was bouncing around in the engine bay, check that, it's easy to see.
Title: Re: Rattling, scrapping sound
Post by: ack on December 05, 2005, 03:00:11 PM
Another source of the noise is a broken ceramic element in the catalytic converter.  Although it is usually caused by doing violent things to the cat (bashing it on rocks is a good way to shatter it) when they break up, you end up with a sound that makes you think the engine is about to explode.
Title: Re: Rattling, scrapping sound
Post by: wildgoody on December 05, 2005, 03:38:48 PM
I took my old Cat off to knock the thing out
of it, and it was allready gone  :o

Must of turboed it out or something
Title: Re: Rattling, scrapping sound
Post by: derekj on December 05, 2005, 04:01:19 PM
ditto - heat sheild rattle

derek
Title: Re: Rattling, scrapping sound
Post by: juggster on December 07, 2005, 07:33:14 AM
thanks for all the replies guys! i took my zuki down to the garage and lifted it up and u guys were right, the cat heatshild is busted... one of the clamps has snapped, so fornow i just bent it away, its a bit better, but still makes a buzzing sound,
Title: Re: Rattling, scrapping sound
Post by: alterego158 on February 22, 2006, 03:28:10 PM
hmm, so maybe my engine isn't about to explode!  I'll have to check the manifold cover and cat heat shield.  Good topic, seems like a common problem.
Title: Re: Rattling, scrapping sound
Post by: Shilly on February 22, 2006, 06:11:03 PM
Might be the hamsters fighting again, too...   ;D
Title: Re: Rattling, scrapping sound
Post by: ROSS on February 22, 2006, 06:24:43 PM
cat converters don't do that if you put them under the work bench.
that's where mine is.


                                  Ross
Title: Re: Rattling, scrapping sound
Post by: alterego158 on February 23, 2006, 07:20:44 AM
hmm, so maybe my engine isn't about to explode!  I'll have to check the manifold cover and cat heat shield.  Good topic, seems like a common problem.

Well I checked both of those just now and everything seems to be in tip top shape.  Next I'm looking at the valve lash.  Anyone know if a shop will charge me to adjust this?  I haven't got the tools or the expertise just yet, but it seems simple.
Title: Re: Rattling, scrapping sound
Post by: TysonS on February 23, 2006, 03:56:00 PM
I took the top and the bottem of the heat sheild off my cat and it stoped rattling
Title: Re: Rattling, scrapping sound
Post by: wezzlegod on February 23, 2006, 07:39:13 PM
mine duse the same thing its the cat sheild or the mount on the tranny to the cat has come loose. my studs broke on the cat so i straped it to the mount. if you live in a smog strict area dont cut the cat out you will not pass smog at all. it will cast you moore if it grose poluter because youd have to have a smog shop fix it and thay charge you more for what a muffler shop would to fix it.
Title: Re: Rattling, scrapping sound
Post by: bus_driver on February 23, 2006, 11:22:49 PM
smog shop eh where you live? if we pass but it is suspicios then the mto will bring you into there own testing site and do it but a specific smog shop is kinda neat