sounds like your cat busted on ya. The smell is the sulfur build up burning.

 

do you have any cats left in the exhaust system ?

 

ye one....on my hotshot headers

 

i have a smell that stinks when i come to a stop light or any stop really. If i have my windows down i get that nasty smell start creeping up. My exhaust is also starting to get louder..maybe an exhaust leak? I dont know how to tell really.

 

wait about 5000 miles and it should go away , thats how long it took my stock exhaust to stop making that smell when i really pushed it . it still does it a little now but its not nearly as bad .

 

well if its my cat how would i know. cause this really stinks....and its getting worse i think

 

does it smell like sulfur ( rotten eggs ) , if so its normal.

 

ye thats exactly what it smells like. but it never happend until i got my new headers (hotshots), which where the catalytic converter theory comes in. you sure its not busted?

 

since you say its getting worse and not better id say maybe it could be a problem but i have never had headers before so i cant say for sure.

 

If the cat was bad normally you would have a decrease in performance as well as the smell. I worked a t a Dodge dealer and a truck came in with a bad cat it wouldn't go over about 55 and then it would start hesitating real bad and not go any faster. That was a bad case that I encountered, but most of the time I've seen slight hesitation and obnoxious egg smell.

 

i would have your cat checked. i've had a cat go bad on every car ive owned and it allways smelled like rotten eggs. i've never felt a difference in the way my car drives only the smell. my tibs stock cat went bad after i installed my NGM headers, so i got a new high flow one and it's working like a champ.

 

meooooow. lol, sorry to post whore.

 

what kinda cat do u suggest? isnt it the bigger the more its gunna decrease performance and sound? whats the diff between a hi-flow cat and the hotshot one i have?

 

Have you tried to retighten the headers down. Sounds more like a exhaust leak. Normally a busted cat you can here as well. My Dodge ram when the cat busted sounded like tins cans underneath was pretty imbarassing at times.

 

when my cat went bad performance didnt decrease or make any different sounds. Just smelled like rotten eggs.

 

is there a way to tell if your having an exhaust problem? im getting the smell and slight hesitation..but i sure dont want go back under that car..

 

only way i know is to go under the car and check all the bolting points, seals and pipes.

 

what would fixing air leaks do about the smell. the air would just be coming outta differnt holes other than the exhaust pipes right? maybe if the holes is before the cat but my smell is coming straight from the exhaust pipes not the front end.

 

yeah ive heard its good to recheck the bolts on headers after its gone through a few hot to cold cycles, like they work there way loose , maybe thats the problem.

 

i have a smell that stinks when i come to a stop light or any stop really. If i have my windows down i get that nasty smell start creeping up. My exhaust is also starting to get louder..maybe an exhaust leak? I dont know how to tell really.

It's me behind you. I got really bad gas.

 

Dont buy gas from mexicans, its just like their food. I always have bad gas after eating mexican..... :3_coool:

 

It is a bad cat, and TT the reason the truck would not go over 55 is because the ECU threw it into "LIMP" mode. When it goes into that mode the performance of vehicle is severely limited, and it retards the timing DRASTICALLY, because it thinks something is wrong and is trying to protect the motor.

Do you have a check engine light? If your cats bad, your CEL should have come on because thats exactly what its there for. Either way it sounds like a bad cat, you should get it replaced. If it was an exhaust leak it would be LOUD and ANNOYING and it would sound different than it normally does.

 

havent had a CEL yet, no

 

Sometimes when a cat goes bad it is so backed up with junk that it clogs up and no exhaust can get out.

 

That used to happen to me too when I had cats.