G5GT2007

the other day i was at the gas station getting gas and i noticed after the car was off a rotten egg kinds smell from my tail pipe. someone said it might have been bad gas that was in the car. so i filled the tank with new gas from a difforent station and 2 days ago it was doing it again when i pulled into my garage. last night i pulled in the garage walked to the back of the car and smelled the exhaust and it wasint doing it. is this normal? theres no lights on car runs fine the temps stays 180-190 no loss of power that i can tell. i run 93 in it i have the gmpp exhaust but thats all for exhaust work.

Illini_06SS

Do you have a catless downpipe?

G5GT2007

nope from the motor to the cat its all stock.

BLAZIN07SS

iTrader: (7)

when a cat is overheating and melting they usually smell like rotten eggs. its weird that it stopped smelling like that though

LS6Rally

iTrader: (14)

it will smell like that if you are driving the car hard, if the smell went away thats what it is. if it constantly smells like that, your cats gone

G5GT2007

no i dont think its constantly ill watch it and see when it stinks. ill drive it normaly also to notice if its just when im hard on it.

blackbolt89

cat

slobalt08

iTrader: (2)

get a replacement magnaflow cat

07MetallicSC

iTrader: (16)

cat recal notice that everyones been getting in the mail. bring it in to the dealership for free fix

blackbolt89

he haz a 2.4.

IIRC only the LSJ cats were affected by the recall.

LS6Rally

iTrader: (14)

^ correct. its nothing major IMO, if its not all the time the cat is most likely still good. and if it is your cat is warantied till 8yr/80K. unless you have a bumper to bumper 100K

Illini_06SS

This. Take it to the dealer and they should take care of it for free.

blackbolt89

key word being SHOULD. i know from experience that dealerships are nothing but thieves.

they'll try to pull some bullshit like your intake which is a GMPP product caused the defect so we won't cover it. point being that they try to find ANY reason as to why their shoddy workmanship was not the cause of the problem.

good luck OP if you do take it in to them.

PSHHH

i get this in my LS all the time its only when i drive it hard tho i dont think ive ever had a car that didnt do it

BULLETSSMOKE

Oh goodie, I have the LSJ cat on my car. Wouldnt matter if it needed to be recalled since I smashed out all of the cat material with a crow bar.

redsport

my cobalt sport dose it when i drive car hard and when i am driving it normal. i took it to the dealership and they would not do any thing cause i didn't have a check engine light.

G5GT2007

i called my dealer and they told me to bring it in so they could look at it. i asked if i would be charged if it does need a new cat and he said no its covered. i told them that it does have the gmpp exhaust and intake and he said that it dont matter its gm parts

LS6Rally

iTrader: (14)

Perfect! good luck bro

cakeeater

A rich afr can cause exhaust to smell like sulfur, which can also eventually lead to a clogged cat. Is everything else working perfectly fine?