so i had this 06 nissan altima and noticed some stuff that was off with the cats converter. first, my car started running like garbage, like it was choking and couldn’t breathe. and then, the check engine light popped on and wouldn’t go away even after i cleaned the codes. also, there was this weird smell coming from the exhaust, like rotten eggs. and that’s a red flag for sure.
i took it to a buddy who knows his stuff, and he told me the cat converter was clog almost 100%. he said that’s a sign of a failing cat.
haven’t you ever noticed if you car is guzzling gas more than usual? that can be another sign. and another thing, noise from the back of the car - any kind of rattling or hissing sounds. what do you think those could be? if you’re dealing with any of these, might be time to check it out. believe me, saves you a ton of trouble in the long run.
I’ve got an '06 Nissan Altima here in Toronto, and lately it’s been acting up. Noticed a rough idle and some loss in power—I think it’s the catalytic converter giving up. Also smelled a whiff of rotten eggs when cranked up. Anyone else had this happen? Thinking it’s high time for a checkup!
I’ve got to tell ya, my '06 Altima in Toronto started acting up big time. Thought it was just gas troubles but turns out the catalytic converter was on its last legs. Had this whining noise and gas mileage dropping like crazy. Took it to the shop, and it needed a change, saved my wallet from a worse hit later down the road. Lucked out finding someone with a steady hand.
In Seattle, I’ve noticed my '06 Altima had serious misfires and a harsh vibration when I rev the engine. Neighbor mentioned his had the same issues, and turns out, both our catalytic converters were shot. It was a clear sign after the check engine light wouldn’t quit. Always check that when stuff starts acting up!
I’ve got an '06 Altima myself, living in the great white north, Canada. One day it started acting up—check engine light was on like some disco ball. Lost power when I floor it, which was a real bummer. Odd smells too, kinda metallic maybe? Took it to the shop and yep, the cat converter needed looking after. It ain’t the cheapest fix, but no compromise on those emissions, right? Totally worth it if you ask me.
I’ve had my '06 Nissan Altima here in Ontario, Canada, for years. Noticed some odd things—check engine light flashing like crazy, sluggish ride, and some rough idling. Plus, that annoying burning smell when I’d accelerate. Turned out to be the catalytic converter giving up. Gotta keep tabs on 'em for sure! Would’ve saved some cash if I checked it earlier. Share your experiences with this?
In Denver, my '06 Altima started losing power & I smelled that funky coolant odour. Thought I hit jackpot with a failing cat conv. Turns out, it was a cap issue. Always double-check!
I’ve had this run in with my '06 Nissan Altima in Toronto, and lemme tell ya, the signs were clear. It started coughing up smoke, idling was rough as hell, and the check engine light flashed like a disco. There’s this pungent smell too, like rotten eggs. I know, guys, it’s party time for a new converter before it kicks the bucket! Almost knocked a tree down!
Back in Jersey, my '06 Altima started acting up. I noticed the check engine light come on, and it just wasn’t running smooth, man. I revved the engine, and it sounded kinda rough, you know? Later, I smelled a weird odor, like rotten eggs. Took it to the mechanic, and sure enough, my cat converter was toast. Save yourself some hassle if you spot these signs!
Living in Chicago, I’ve felt the struggles with my '06 Nissan Altima too. Lately, it’s started hesitating and stalling like it’s got issues, and the exhaust’s smelling way worse than usual. Friends say it’s the cat converter acting up, especially when I hit highway speed. It’s a real bummer, and I know I need to get it checked soon before the check engine light goes nuts. Anyone else dealt with this? 
Oh man, I had this issue back in Michigan a few years ago with my '06 Altima. I noticed a rough idle and some stinky exhaust. Then came the check engine light, flashing like crazy. Took it to the mechanic, and sure enough, the catalytic converter was toast. Sucks when that happens, but getting it fixed early saved me from bigger headaches later. Funny how a little thing can cause so much trouble!
I’ve got a thing or two about recognizing a bad catalytic converter—trust me, it hit me in Quebec last year. So, my 06 Nissan Altima started sounding like a gravelly monster after a long road trip. Not to mention, the ole’ blue check engine light and that gas tank started going dry way too quick. Realized it was the cat converter hunting for an exit, much to my chagrin. Always good to stay on top of these things!
I’ve got a story from NYC—my '06 Altima’s started acting up, and turns out the catalytic converter was the troublemaker. Checked the exhaust, smelled like rotten eggs and car just wouldn’t pick up speed. Super annoying, but now it’s fixed! So, watch for weird smells and sluggishness. Peace out!
Growing up on the south side of Chicago, my '06 Nissan Altima started throwing these funky codes and the check engine light was like fire. That converter was toast. Noticed it whining under acceleration and guzzling fuel like a thirsty camel. Then came the rough idle at heated temp. Had it fixed, but man, you gotta listen to your car! Clear vibes but keep a close eye out, my friends.
Back in '17, I was driving my 06 Nissan Altima up in Michigan when it started acting all funny. The engine light popped on, and it felt like it wasn’t running smooth. Thought maybe it was lazy, but turns out the catalytic converter was on its way out. Limped to the shop and sure enough, it was all clogged up. Those exhaust smells were no joke! Burnt rubber and exhaust were like its perfume. Always check it early!
I had an '06 Altima back in Toronto, and mine started chugging like crazy, ugh. Lost gas mileage faster than you’d think. Smelled sorta like rotten eggs, too. Thought it was just the weather at first. So yeah, not a fun ride till it got fixed!
I have an '06 Altima from Vancouver, and I had a real issue with the catalytic converter. Outta nowhere, it started running rough and the throttle response got all sluggish—definitely a warning sign. Plus, the engine management light went off like crazy, and the black smoke rolling out the back wasn’t a good look. I’m glad I checked it out before it got worse. Noticed a drop in fuel efficiency too. Can’t stress trying to catch these signs early enough!
I’ve noticed with my 06 Altima in Toronto, some common signs of a failing catalytic converter: Check engine light popping up, car loses power outta nowhere, and that rotten egg smell when you sniff around the tailpipe. Other drivers mentioned increased gas consumption, which was weird for me too. It’s not smooth riding when it’s on its way out, that’s for sure!
I’ve got an ‘06 Altima from Vancouver, BC. It started coughin’ like crazy, smelled like rotten eggs, and gas was guzzlin’ like there’s no tomorrow. After a quick pit stop at the mechanic, peeps told me the cat were kiboshed. Replaced it, and sweet ride again! 
