The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Rotten egg smell

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

crazycarls97gst

Probationary Member
25
0
Dec 13, 2002
Tinley Park, Illinois
Im just wondering if anyone knows, or has any idea of why when i get on it hard. I get a rotten egg smell right after im done gettin off it. I think it might be the cat but im not sure any suggestions would be good.
 
Rotten egg smells come from sulfur compounds [yes, that college chemistry course paid off]. An out-of-tune engine produces more stench than normal. Also the cat is probably not as efficient as it used to be, so it's letting the stink out. Other emission related gadgets on your engine may not be working correctly... such as the EGR valve. When it clogs up, the car pollutes more than it should.
.. Or maybe a family of mice died in your heater duct!
Wait for more posts since I'm not an expert in this area!!!!!!!
 
doesnt the clutch usually smell like burnt ####? LOL go on a hill and ride the clutch for about 5 seconds and youll know what im talkin about, actually dont.. bad for your clutch obviously
 
alright thats what i thought. Now time to fix it, what do you guys think wait til i get the full exhaust, wit hi flow cat or test pipe or go ahead and just get a test pipe or hi flow cat that will mount up to the stock exhaust diameter?
 
My car does this too... Mostly when I'm boosting maybe 3-5lbs going uphill, then when I let off the gas a little. It is definitely not my cat, as I just put in a full 3" with high flow cat. What else could it be?
 
I was driving home from Lincoln, NE to KC, MO when I got the rotten egg smell. I pulled over at a gas station and popped the hood and my battery had blown it's top. Apparently the alternator went wacky and was overcharging the battery. The smell was the battery acid being cooked dry. I didn't get any check engine lights to tell me there was a problem and had I not been driving on the highway with my top down (Spyder) I might have noticed the smell earlier. As it was I had a fried battery and alternator and now there is battery acid stain over alot of my internal components.

I'd have someone check the alternator just to be safe.
 
FourG63 97GST is right, more then likely itz the clutch..i took my car to dealer after dealer to find out what that smell was...then one day after a small burn out..the clutch was gone...Not fun when u around 20 other car clubs..
 
Some brands of fuels contain more sulfur than others. Sulfur can collect in the converter. When enginge parameters change, the sulfur that has collected can be expelled as hydrogen sulfide (smells like rotton eggs)

Switch brands of fuel and always run premium (contains less sulfur)
 
if its a rotten egg smell then its DEFINITELY your catilytic converter.. ive smelled it several times on my friends car.. and after you do a burn out.. itll prolly increase the smell because your gunnin it and burnin lots more fuel... just gut your cat.. hehe
 
Where is the smell coming from? Inside the car from behind the stereo? Or from the outside? If the smell was coming from the cat, it would come out of the exhaust. If it was the ECU caps leaking, it would come from behind the stereo.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Latest Classifieds

  • Wanted 1g Chassis harnes fuse box
    • 92AWDHX40
    • Updated:
    • Expires
  • Wanted 4G63 WTB Evo 560cc injectors or 450cc
    Im looking to pick up a set of evo 560cc injectors or possibly a set of 450cc injectors if the...
    • eclipsemf
    • Updated:
    • Expires
  • Wanted 1g Looking for pn MB522081
    Looking for a factory 1g double din radio bezel pn MB522081
    • Kgilis
    • Updated:
    • Expires
  • For sale 2g 2g Talon drivers side airbag
    Drivers side 95-98 Talon airbag. Excellent condition. Can ship UPS ground. Message...
    • Galant665
    • Updated:
  • For sale 2g 2g Talon tail lights.
    Pair of 2g OEM Talon tails. Decent condition. Not show quality. Right has a section on bottom...
    • Galant665
    • Updated:
Back
Top