Catalytic Converter

Asked by Gdowen Aug 31, 2018 at 10:12 AM about the 2008 Lexus RX 350 FWD

Question type: Maintenance & Repair

How do you know when a catalytic converters on a 2008, 118,000 miesneeds
to be replaced?

1 Answer

103,215

You would get a lot of O2 codes thrown, rough idle, might even detect a sulfurous odor (rotten eggs). 118K miles seems premature for a bad cat, unless you have a lot of idle hours or drove with a mistuned engine for a long time.

Your Answer:

CarGurus Experts

  • #1
    tenspeed
    Reputation
    8,390
  • #2
    Papaobewon
    Reputation
    5,620
  • #3
    Nicolaos Vlachos
    Reputation
    5,170
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lexus RX Hybrid
10 Great Deals out of 499 listings starting at $4,998
Used Lexus GX
3 Great Deals out of 54 listings starting at $13,800
Used Toyota Highlander
32 Great Deals out of 738 listings starting at $2,495
Used Lexus ES
15 Great Deals out of 195 listings starting at $3,888
Used Acura MDX
30 Great Deals out of 766 listings starting at $6,495
Used Toyota RAV4
108 Great Deals out of 2,083 listings starting at $3,888
Used Acura RDX
29 Great Deals out of 942 listings starting at $5,950
Used Lexus LX
4 Great Deals out of 28 listings starting at $28,900
Used Toyota 4Runner
10 Great Deals out of 304 listings starting at $9,700
Used Lexus IS
25 Great Deals out of 311 listings starting at $5,900
Used Lexus LS
27 listings starting at $9,995
Used Honda CR-V
103 Great Deals out of 3,896 listings starting at $1,795
Used BMW X5
47 Great Deals out of 1,134 listings starting at $3,995
Used Toyota Camry
52 Great Deals out of 985 listings starting at $2,212

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.