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Rotten Egg Smell After Driving

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Old Sep 5, 2013 | 11:41 PM
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Default Rotten Egg Smell After Driving

So I really have only driven this car maybe a few miles. I had to fix the worn out leaking rubber fuel hoses before I could actually drive the thing. My question is, after a few miles I get this faint rotten egg smell entering the cabin. This weekend I'll be flushing the coolant, and hopefully changing the tranny and diff fluids. What would that smell be coming from?
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Old Sep 5, 2013 | 11:47 PM
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This may not be of any help to you, but the last time I smelled that in a car was when our XJ8 Jaguar's secondary timing chain tensioners gave out, and the secondary timing chain jumped a tooth on the cam sprocket. I think unburnt fuel was getting it's way into the catalytic converter. Lucky we spotted it when we did. If it had jumped another tooth, Mr exhaust valve would have had a rather nasty encounter with Mrs piston!
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Old Sep 6, 2013 | 01:14 AM
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A shorted battery will give that rotten egg smell.
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Old Sep 6, 2013 | 07:02 AM
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my guess would be catalytic converter if you have one.
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Old Sep 6, 2013 | 08:07 AM
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Old gas maybe ?

Or beer fart ?
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Old Sep 6, 2013 | 08:32 AM
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Last time I smelled something like that was when the battery regulator failed on a C-47... Batteries overcharged.. You might want to take a look at your battery and charging system ...
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Old Sep 6, 2013 | 09:15 AM
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Originally Posted by dar322
my guess would be catalytic converter if you have one.
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Old Sep 6, 2013 | 11:46 AM
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Another vote for the cat... When I had this happen on a car once, I fixed it with a hammer and a very long chisel followed by a few muffler clamps... No more cat, no more problem.
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Old Sep 6, 2013 | 12:08 PM
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Your battery is cooking
What does the voltage gauge read?
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Old Sep 6, 2013 | 12:15 PM
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Had the rotten egg smell a few years back. turned out to be the catalytic converter. No more converter, no more smell.
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Old Sep 6, 2013 | 03:45 PM
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Catalytic converter, especially if your AIR (smog) pump has stopped working, or you disconnected it.
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Old Sep 7, 2013 | 02:04 PM
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To lean, to rich, to hot will kill a cat.

To test they need to drill upstream (and down stream) holes in exh pipe and can be expensive/time consuming.

See your local smog test station,
cardo
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Old Sep 7, 2013 | 03:03 PM
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darn cats ! both kinds
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Old Sep 7, 2013 | 10:56 PM
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Originally Posted by dochorsepower
Catalytic converter, especially if your AIR (smog) pump has stopped working, or you disconnected it.
What happens on the federal cars that don't have an AIR pump?
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Old Sep 7, 2013 | 11:12 PM
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Common cat problem.



Meow
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Old Sep 10, 2013 | 05:09 PM
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Thanks for the info, charging system indicates its ok. Probably that 34 year old cat then. I'll replace my factory exhaust with a stainless steel setup later I'll just replace the cat then.
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