100% Free

No Scanner Needed

Carly logo
Prices

wolfganglorenz16

Essentia NOx Catalyst and Exhaust Leak

My 2015 Chevrolet Essentia (gasoline) has a check engine light for NOx storage catalyst aging, plus an exhaust leak. I think it's in the exhaust system. Anyone seen this?

Summary of the thread

A 2015 Chevrolet Essentia is experiencing a check engine light due to NOx storage catalyst aging and an exhaust leak. The problem is likely related to the emissions system, possibly involving a crack in the exhaust manifold near the catalytic converter. A suggested solution is to have a professional mechanic inspect and potentially replace the manifold to resolve the issue.

Did this summary help you solve your problem?

4 comment(s)

barbarafuchs1

I have a similar Chevy Essentia, though newer. I had a similar check engine light and exhaust smell. Did you get any specific error codes related to air quality or nitrogen oxides when you scanned it?

wolfganglorenz16 (community.author)

Yes, the diagnostic tool indicated an issue with the NOx catalyst efficiency. I don't recall the exact code, but it pointed to the emissions system. What was your experience? Was it a leak, and how extensive was the repair?

barbarafuchs1

Turned out to be a small crack in the exhaust manifold near the catalytic converter. I tried patching it, but it didn't hold. I took it to a workshop. They replaced the manifold, and the problem went away. Save yourself the headache and get it checked by a professional.

wolfganglorenz16 (community.author)

I appreciate the input. Based on your experience, I'll schedule an appointment with a trusted mechanic. The repair cost me 265€, including parts and labor. Hopefully, a similar repair will resolve my issue. Thanks again.

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

CHEVROLET

community_crosslink_rmh_model

ESSENTIA