Parts Replaced but codes come back. What do you do?

Asked by Jun 13, 2017 at 02:13 PM about the 2003 Chevrolet Impala Base

Question type: Maintenance & Repair

I have replaced the EGR valve and engine
coils and still get codes. I have had them
cleared and they still come back.

1 Answer

98,385

Then you could have wiring resistance problems, sensor grounding issues, or the ECM is freaking out. I recommend getting a live data scan performed and that should track down the problem.

Your Answer

Chevrolet Impala Experts

  • #1
    Js08016
    Reputation
    1,840
  • #2
    Tom Demyan
    Reputation
    1,760
  • #3
    Danny Wang
    Reputation
    1,680
View All

Related Models For Sale

Used Chevrolet Malibu
111 Great Deals out of 2,281 listings starting at $2,500
Used Chevrolet Camaro
782 listings starting at $13,040
Used Honda Accord
77 Great Deals out of 1,112 listings starting at $748
Used Nissan Maxima
29 Great Deals out of 331 listings starting at $3,976
Used Ford Mustang
9 Great Deals out of 1,179 listings starting at $2,995
Used Nissan Altima
70 Great Deals out of 1,277 listings starting at $2,750
Used Toyota Camry
43 Great Deals out of 1,594 listings starting at $1,700
Used Chevrolet Tahoe
7 Great Deals out of 622 listings starting at $6,871
Used Chevrolet Silverado 1500
157 Great Deals out of 10,560 listings starting at $100
Used Chevrolet Monte Carlo
13 listings starting at $8,900

Used Cars For Sale

2018 Chevrolet Impala For Sale
102 listings starting at $32,795
2017 Chevrolet Impala For Sale
27 Great Deals out of 215 listings starting at $21,900
2016 Chevrolet Impala For Sale
6 Great Deals out of 112 listings starting at $19,998
2015 Chevrolet Impala For Sale
34 listings starting at $15,999
2014 Chevrolet Impala For Sale
58 listings starting at $13,495

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.