willshak <willshak@[EMAIL PROTECTED]
> wrote in
news:13qm4r66hmijq99@[EMAIL PROTECTED]
> on 2/6/2008 7:17 PM Codifus said the following:
>> willshak wrote:
>>> on 2/5/2008 3:19 AM krn001@[EMAIL PROTECTED]
said the following:
>>>
>>>> I dont see my initial post so i am reposting:
>>>>
>>>> Hi,
>>>> I have a question regarding my 96 pick up. When i start it up i often
>>>> get a sound coming from underneath near the engine. It sounds like
>>>> "metal pieces being shaken in a tin can". This lasts momentarily on
>>>> start up but
>>>> occasionally can repeat upon acceleration after coming to a stop. I
>>>> thought perhaps the catylitic converter but sound seems closer to
>>>> engine. Every time i stopped by my mechanic i couldnt replicate the
>>>> sound to appear.
>>>> * vehicle info:
>>>> 1996 2wd pick up xtended cab, 4 cyl, auto, virtually all options,
>>>> mileage is:
>>>> 38,000 ORIGINAL MILES
>>>> I am 2nd owner since 3/2000.
>>>> Any info is appreciated.
>>>> Thanks in advance....... Karl
>>>>
>>>
>>>
>>> I have a 97 pickup with ~60,000 miles. I have the same noise, a
>>> rattling tinny sound when I start up that sounds like a loose ****eld
>>> of some sort quiets after a second or two, and I am afraid that it
>>> may be the timing chain.
>>> I rarely go more than 10 miles on a trip, and I figure it's gonna
>>> break one day and I'll have to have it towed and spend big bucks to
>>> repair it.
>>> Post back if you find out it is something cheaper. :-)
>>>
>> Heat ****eld above tha CAT? When it happened on my car the sound seemed
>> like it was in the dash when it was really under the car all that time.
>>
>> CD
>
> I have owned my 97 pickup since new. All my exhaust pipe ****elds have
> long ago rusted and were pulled off. I had a cat-back Cherry Bomb dual
> exhaust installed a year or so ago at Meineke and I told the guy about
> the noise. He checked the whole exhaust system and welded a broken
> bracket in front of the cat, but that wasn't the cause of the noise.
> It is a sound like the metal ****eld over the exhaust manifold is loose
> and when starting, it vibrates and then quiets down when the engine is
> idling smoothly, but the exhaust ****eld is solidly attached.
>
Acura Integras have a double-walled "A" pipe to allow the catalytic to
heat
up faster,and an inner pipe weld would crack,and you'd get a buzz at
around
3500 rpm. REALLY annoying.
perhaps yout auto has a similar double-walled pipe?
--
Jim Yanik
jyanik
at
kua.net
|
