Tapping Noise (Exhaust?)
05-20-2004, 07:20 PM
#11
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
Ditto on the cat comments I have had a few go like that.... change it
before it plugs right up or causes excessive back pressure on your
engine. The first one that went on me rattled for a few months then it
decided to break up and jam into the cat outlet nozzle and drop my
forward momentum to a crawl, I actually went out and drilled a 5/8"
hole in the front of the converter to allow me to drive to the muffler
shop.
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
Ditto on the cat comments I have had a few go like that.... change it
before it plugs right up or causes excessive back pressure on your
engine. The first one that went on me rattled for a few months then it
decided to break up and jam into the cat outlet nozzle and drop my
forward momentum to a crawl, I actually went out and drilled a 5/8"
hole in the front of the converter to allow me to drive to the muffler
shop.
05-20-2004, 07:20 PM
#12
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
Ditto on the cat comments I have had a few go like that.... change it
before it plugs right up or causes excessive back pressure on your
engine. The first one that went on me rattled for a few months then it
decided to break up and jam into the cat outlet nozzle and drop my
forward momentum to a crawl, I actually went out and drilled a 5/8"
hole in the front of the converter to allow me to drive to the muffler
shop.
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
Ditto on the cat comments I have had a few go like that.... change it
before it plugs right up or causes excessive back pressure on your
engine. The first one that went on me rattled for a few months then it
decided to break up and jam into the cat outlet nozzle and drop my
forward momentum to a crawl, I actually went out and drilled a 5/8"
hole in the front of the converter to allow me to drive to the muffler
shop.
05-20-2004, 07:20 PM
#13
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
Ditto on the cat comments I have had a few go like that.... change it
before it plugs right up or causes excessive back pressure on your
engine. The first one that went on me rattled for a few months then it
decided to break up and jam into the cat outlet nozzle and drop my
forward momentum to a crawl, I actually went out and drilled a 5/8"
hole in the front of the converter to allow me to drive to the muffler
shop.
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
Ditto on the cat comments I have had a few go like that.... change it
before it plugs right up or causes excessive back pressure on your
engine. The first one that went on me rattled for a few months then it
decided to break up and jam into the cat outlet nozzle and drop my
forward momentum to a crawl, I actually went out and drilled a 5/8"
hole in the front of the converter to allow me to drive to the muffler
shop.
05-20-2004, 07:56 PM
#14
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
handywired@aol.com (Handywired) wrote in message news:<20040520131931.13668.00000940@mb-m26.aol.com>...
> >I have developed a strange noise... almost a rattle.. from what I believe
> >is
> >the under/passenger side of my 99 TJ
>
> Sure sounds like your catalytic converter to me! The guts of it come loose and
> rattle against the metal. Mine does that.
Mine started doing that the last time I let the teenage daughter loose
in it. Better check.
> >I have developed a strange noise... almost a rattle.. from what I believe
> >is
> >the under/passenger side of my 99 TJ
>
> Sure sounds like your catalytic converter to me! The guts of it come loose and
> rattle against the metal. Mine does that.
Mine started doing that the last time I let the teenage daughter loose
in it. Better check.
05-20-2004, 07:56 PM
#15
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
handywired@aol.com (Handywired) wrote in message news:<20040520131931.13668.00000940@mb-m26.aol.com>...
> >I have developed a strange noise... almost a rattle.. from what I believe
> >is
> >the under/passenger side of my 99 TJ
>
> Sure sounds like your catalytic converter to me! The guts of it come loose and
> rattle against the metal. Mine does that.
Mine started doing that the last time I let the teenage daughter loose
in it. Better check.
> >I have developed a strange noise... almost a rattle.. from what I believe
> >is
> >the under/passenger side of my 99 TJ
>
> Sure sounds like your catalytic converter to me! The guts of it come loose and
> rattle against the metal. Mine does that.
Mine started doing that the last time I let the teenage daughter loose
in it. Better check.
05-20-2004, 07:56 PM
#16
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
handywired@aol.com (Handywired) wrote in message news:<20040520131931.13668.00000940@mb-m26.aol.com>...
> >I have developed a strange noise... almost a rattle.. from what I believe
> >is
> >the under/passenger side of my 99 TJ
>
> Sure sounds like your catalytic converter to me! The guts of it come loose and
> rattle against the metal. Mine does that.
Mine started doing that the last time I let the teenage daughter loose
in it. Better check.
> >I have developed a strange noise... almost a rattle.. from what I believe
> >is
> >the under/passenger side of my 99 TJ
>
> Sure sounds like your catalytic converter to me! The guts of it come loose and
> rattle against the metal. Mine does that.
Mine started doing that the last time I let the teenage daughter loose
in it. Better check.
05-20-2004, 07:56 PM
#17
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
handywired@aol.com (Handywired) wrote in message news:<20040520131931.13668.00000940@mb-m26.aol.com>...
> >I have developed a strange noise... almost a rattle.. from what I believe
> >is
> >the under/passenger side of my 99 TJ
>
> Sure sounds like your catalytic converter to me! The guts of it come loose and
> rattle against the metal. Mine does that.
Mine started doing that the last time I let the teenage daughter loose
in it. Better check.
> >I have developed a strange noise... almost a rattle.. from what I believe
> >is
> >the under/passenger side of my 99 TJ
>
> Sure sounds like your catalytic converter to me! The guts of it come loose and
> rattle against the metal. Mine does that.
Mine started doing that the last time I let the teenage daughter loose
in it. Better check.
05-20-2004, 08:56 PM
#18
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
Everyone has already said the cat converter, but I figured I'd through
out a possible cracked exhaust manifold. Although it wouldn't make
sense to be hearing it from the passenger side. When mine started to
go, I'd hear it most when under load as you mentioned. Thought it was
engine ping at first. Just wanted to mention it as a possibility.
Dave
http://mysite.verizon.net/res0p2es/david/index.htm
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
out a possible cracked exhaust manifold. Although it wouldn't make
sense to be hearing it from the passenger side. When mine started to
go, I'd hear it most when under load as you mentioned. Thought it was
engine ping at first. Just wanted to mention it as a possibility.
Dave
http://mysite.verizon.net/res0p2es/david/index.htm
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
05-20-2004, 08:56 PM
#19
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
Everyone has already said the cat converter, but I figured I'd through
out a possible cracked exhaust manifold. Although it wouldn't make
sense to be hearing it from the passenger side. When mine started to
go, I'd hear it most when under load as you mentioned. Thought it was
engine ping at first. Just wanted to mention it as a possibility.
Dave
http://mysite.verizon.net/res0p2es/david/index.htm
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
out a possible cracked exhaust manifold. Although it wouldn't make
sense to be hearing it from the passenger side. When mine started to
go, I'd hear it most when under load as you mentioned. Thought it was
engine ping at first. Just wanted to mention it as a possibility.
Dave
http://mysite.verizon.net/res0p2es/david/index.htm
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
05-20-2004, 08:56 PM
#20
Guest
Posts: n/a
Re: Tapping Noise (Exhaust?)
Everyone has already said the cat converter, but I figured I'd through
out a possible cracked exhaust manifold. Although it wouldn't make
sense to be hearing it from the passenger side. When mine started to
go, I'd hear it most when under load as you mentioned. Thought it was
engine ping at first. Just wanted to mention it as a possibility.
Dave
http://mysite.verizon.net/res0p2es/david/index.htm
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>
out a possible cracked exhaust manifold. Although it wouldn't make
sense to be hearing it from the passenger side. When mine started to
go, I'd hear it most when under load as you mentioned. Thought it was
engine ping at first. Just wanted to mention it as a possibility.
Dave
http://mysite.verizon.net/res0p2es/david/index.htm
On Thu, 20 May 2004 14:57:59 GMT, "Eric" <gymrat@baileyscorner.com>
wrote:
>I have developed a strange noise... almost a rattle.. from what I believe is
>the under/passenger side of my 99 TJ. It doesn't happen all the time, seems
>to happen mostly when it is warm and has been under a load (i.e. stop-n-go
>traffic, highway driving, etc) for a while. The rattle is the loudest when
>under load, i.e. when I take off from a stop sign or accelerate up a hill.
>It has gotten louder lately. One day it was so bad, the "rattle" (sounds
>like metal tapping metal, actually) was happening at idle. I got out, and
>since I was in uniform and couldn't crawl under it, I just stuck my foot on
>the tailpipe to see if that would stop it, and it seemed to.
>
>I'm finally home, but can't get it to duplicate at a time when I can put it
>up on stands and take a look at it. Every time I do, it won't duplicate. I
>DID find a lot of green/white powdery stuff caked on the pipe between the
>cat and the muffler. I've never seen that before. The pipe has a thick
>coating of this junk from end to end of the pipe connecting the cat to the
>muffler.
>
>Any thoughts on this? It isn't one of those "it's a Jeep, it makes noise,
>deal with it" situations. My wife thought the muffler was dragging
>yesterday it got so bad.
>
>By the way, I tapped, pulled, pushed, and prodded the exhaust from the
>downpipe back. Nothing loose that I could see.
>
>Eric
>99 TJ SE
>