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There is a distinct odor like propane coming from the car....it is not an exhaust smell or a sulfur smell.

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MAYBE AIRCON IS LEAKING

Posted on Nov 19, 2013

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Posted on Jan 02, 2017

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SOURCE: 2002 Rolls Odor coming into car

The sulfer, or rotten egg smell is indicitive of a bad catalytic converter. It is by no means the air conditioning system, unless of course you have a skunk in the vent.

Posted on Sep 11, 2008

MrScary66613
  • 1990 Answers

SOURCE: 2005 Cobalt Check engine light blinking.

You need to Replace the Catalytic Converter. That is what you are Smelling. It has Clogged up and will also Cause the Light on the Dash Problem. Please Rate My Response! Thanks!

Posted on Feb 01, 2009

  • 1 Answer

SOURCE: 2006 Toyota 4Runner Sulfur smell

I noticed going from a Higher Grade gasoline as well as making sure I change my motor oil on a regular basis (3,000-5,000 mi)to solve this problem. When the car isn't driven at a high RPM for a while, and you go to a quick acceleration it causes this smell.

Posted on Jun 09, 2009

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3 Answers

My 1995 cadillac eldorado was losing power like the car was running out of gas and now smell exhaust


When you say smell like exhaust, does it smell like rotten eggs (sulfur)? If so, could be catalytic converter clogged up.

Jul 03, 2016 | Cadillac Cars & Trucks

1 Answer

I have a 99 chevy lumina 3.1 engine it starts up great but it smell of fumes from exhaust pipes after a while it cuts off


The problem you describe is almost certainly a bad/stopped-up catalytic converter. Not fuel line, not trunk seals, not head gasket or anything else. The fuel line answer is just wrong. If your catalytic converter is bad or stopped up, you will also almost certainly need to replace the Oxygen sensor as well.

You didn't say it smells like rotten eggs or sulfur, but that is the most commonly-stated description...it isn't accurate; a bad converter smells like a bad converter. Most people find the odor similar to rotten eggs or sulfur. A clogged exhaust system will shut an engine off after a short time due to backpressure and excessive temperature buildup.

Your check engine light should also be on. Read any diagnostic codes the PCM has set. I'm fairly sure your problem is the catalytic converter...

Steve Johnson,
Wrenching GM Cars/Trucks For 40 Years

Apr 02, 2015 | 1999 Chevrolet Lumina

3 Answers

I have a Chrysler pt cruiser 2003 , when starting it's mis firing, it has no power when driving and it produces rotten egg smell


you have a clogged up catalytic converter there are some ways to unclog on youtube if you can get to it you can put a piece of wire in a drill and spin it inside to break up the carbon build up its hard to get out best to change good luck with it some people drill holes in it to relieve presure

Mar 19, 2015 | 2003 Chrysler PT Cruiser

2 Answers

What would be causing what sulfur smelling exhaust smoke?


The Smell is-- Sulfur Dioxide-- from an over heated
Exhaust Converter

Yes-- it will be ruined soon

White Smoke all the time, could be a head gasket

It could also be-- lots of fuel-- that is overheating the converter

Have to look at fuel trim on scan tool data

Aug 23, 2014 | 2012 Ford Fusion S Sedan 2.5L 4-cyl....

3 Answers

Odd smell from engine


If you have been (revving the car/racing/accident/excessive speeding) you will smell something similar to burning oil from the engine, also if it has been more than 10,000kms (6000 mile) since last oil change you should get it serviced.

Dec 26, 2013 | 2005 Mercury Mariner

1 Answer

1999 mercury cougar engine is bucking and check engine light blinking and foul odor


very possible convertor is plugged have local muffler shop check temp difference between convertor an exhaust ppipe also check fuel pressure

Jun 25, 2012 | 1999 Mercury Cougar

1 Answer

Bad odor coming from the exhaust on a 2005 nissan maxima


If it's a sulfur smell, or a rotton egg smell, you probably have a bad catalytic converter.

May 13, 2010 | 2005 Nissan Maxima

3 Answers

2006 Toyota 4Runner Sulfur smell


I noticed going from a Higher Grade gasoline as well as making sure I change my motor oil on a regular basis (3,000-5,000 mi)to solve this problem. When the car isn't driven at a high RPM for a while, and you go to a quick acceleration it causes this smell.

Jul 22, 2008 | 2006 Toyota 4Runner

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