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

98,545

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
    1,850
  • #2
    Tom Demyan
    Reputation
    1,760
  • #3
    Danny Wang
    Reputation
    1,680
View All

Related Models For Sale

Used Chevrolet Malibu
1,222 Great Deals out of 77,349 listings starting at $1,500
Used Chevrolet Camaro
416 Great Deals out of 31,676 listings starting at $2,395
Used Honda Accord
1,037 Great Deals out of 61,333 listings starting at $999
Used Nissan Maxima
351 Great Deals out of 23,418 listings starting at $1,550
Used Ford Mustang
743 Great Deals out of 42,181 listings starting at $1,300
Used Nissan Altima
1,088 Great Deals out of 73,785 listings starting at $875
Used Toyota Camry
1,056 Great Deals out of 70,872 listings starting at $750
Used Chevrolet Tahoe
643 Great Deals out of 36,921 listings starting at $1,800
Used Chevrolet Silverado 1500
2,131 Great Deals out of 181,503 listings starting at $1,898

Used Cars For Sale

2018 Chevrolet Impala For Sale
5,626 listings starting at $23,206
2017 Chevrolet Impala For Sale
77 Great Deals out of 10,312 listings starting at $16,000
2016 Chevrolet Impala For Sale
38 Great Deals out of 1,540 listings starting at $13,898
2015 Chevrolet Impala For Sale
24 Great Deals out of 1,362 listings starting at $10,750
2014 Chevrolet Impala For Sale
76 Great Deals out of 2,576 listings starting at $9,700

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.