My car sounds like a fart can.
01-22-2003, 12:22 PM
#1
Instructor
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Location: Atlanta, GA
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My car sounds like a fart can.
Last week my car started sounding like a riced out Honda when it first starts up. Only in 1st and 2nd under a little bit of a load, start just before 3000 rpm.
After it warms up it starts to sound fine, even when I give it some gas.
The sound seems as if it is coming from the engine bay and not the muffler. At first I thought maybe I just had a leaf or something caught against the air filter, but no such luck.
I'm hoping its just some valve somewhere sticking.
Any ideas of what I should check?
--Jonathan
After it warms up it starts to sound fine, even when I give it some gas.
The sound seems as if it is coming from the engine bay and not the muffler. At first I thought maybe I just had a leaf or something caught against the air filter, but no such luck.
I'm hoping its just some valve somewhere sticking.
Any ideas of what I should check?
--Jonathan
01-22-2003, 12:37 PM
#2
Race Director
Probably a hole in the exhaust.
My race car sounded like a fart can ricer when idleing with straight pipe (no cat or muffler). It was not bad when revved up, but too ricy at idle.
My race car sounded like a fart can ricer when idleing with straight pipe (no cat or muffler). It was not bad when revved up, but too ricy at idle.
01-22-2003, 10:16 PM
#5
Burning Brakes
Join Date: Feb 2002
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Mine sounded a bit like this, but it sounded like it was from under the car, towards the front. The one day I came around a corner and BBBBRRRRAAAAAAAAAAAA!!!!!
I had a small crack/leak in the exhaust just in front of the cat, it turns out. The loud noise was the crack breaking off completely and let me tell you, it was loud.
I would have an exhaust shop take a look and see where there's a crack of bad gasket, because if it lets go completely, it's noisey as hell.
I had a small crack/leak in the exhaust just in front of the cat, it turns out. The loud noise was the crack breaking off completely and let me tell you, it was loud.
I would have an exhaust shop take a look and see where there's a crack of bad gasket, because if it lets go completely, it's noisey as hell.
01-22-2003, 10:36 PM
#6
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I am currently having the same exact problem - fart can noise at around 3K RPM - acutally a good shift indicator on the street - "don't let it sound like that - shift on-time" type of a deal.
I know for sure - I have a crack in the catalyst right as it connects to the exhaust. I don't have stock catalytic converter (an aftermarket one for smaller 4-cyl cars I put just to pass smog). Well it burned through and is now making noise. When the car is hot, it seals and sounds fine. I am looking for an alternative solution - maybe a legal high flow replacement, or a junk yard stock unit. Or may be another generic one...
For now I am living with noise....
I know for sure - I have a crack in the catalyst right as it connects to the exhaust. I don't have stock catalytic converter (an aftermarket one for smaller 4-cyl cars I put just to pass smog). Well it burned through and is now making noise. When the car is hot, it seals and sounds fine. I am looking for an alternative solution - maybe a legal high flow replacement, or a junk yard stock unit. Or may be another generic one...
For now I am living with noise....
