Rattling Cats???
#1
Rattling Cats???
Think I have the rattle cat....... Rattles only when sitting at a stand still during idle. It comes and goes.... Example: Rattle Rattle Rattle................Rattle Rattle Rattle....... etc. Can hear it really well when next to a building or wall of some sort.
I thought it might be the heat shield around the cats, but they seem attached securely. Does this sound like a busted up cat????
Thanks
I thought it might be the heat shield around the cats, but they seem attached securely. Does this sound like a busted up cat????
Thanks
#2
TECH Fanatic
iTrader: (20)
Sounds like it. My car was doing the same thing until peices of the cat started coming out of the pipe. Of course I had a sweet thunder dumped off the factory y pipe so it didnt have far to go. Took off the pipes to install the headers and my cats just dumped all over the garage floor.
#3
TECH Senior Member
Is this on your F-body..?
On mine it was the i-pipe ID had expanded allowing the y-pipe to fit loose...
I fixed by expanding the y-pipe (using a pipe expander) so it fit snug in the i-pipe.
You might want to first check if this is it or not.
On mine it was the i-pipe ID had expanded allowing the y-pipe to fit loose...
I fixed by expanding the y-pipe (using a pipe expander) so it fit snug in the i-pipe.
You might want to first check if this is it or not.
#7
Teching In
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Join Date: Apr 2010
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My '95 had the same symptoms...TWICE. The first time it started off as a rattle, then got worse and worse. One day, I was accelerating onto the interstate and noticed a definite loss in power. I stayed in the gas and a few seconds later had a large black puff of smoke exit the exhaust pipe. Turns out the guts had come loose and became unaligned with the exhaust pipe creating mass amounts of back pressure. So, I replaced the cat with with an aftermarket one.
2 years later, same symptoms...rattle rattle rattle.....rattle rattle rattle... I pulled the pipe, grabbed a loooong prybar and gutted it. Since it was a '95, it passed the visual inspection because it looked like it had a cat. Problem solved.
2 years later, same symptoms...rattle rattle rattle.....rattle rattle rattle... I pulled the pipe, grabbed a loooong prybar and gutted it. Since it was a '95, it passed the visual inspection because it looked like it had a cat. Problem solved.