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

107,285

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
    2,040
  • #2
    Tom Demyan
    Reputation
    1,900
  • #3
    Danny Wang
    Reputation
    1,720
View All

Related Models For Sale

Used Chevrolet Malibu
102 Great Deals out of 1,775 listings starting at $1,877
Used Honda Accord
64 Great Deals out of 1,173 listings starting at $1,888
Used Chevrolet Camaro
937 listings starting at $12,798
Used Nissan Maxima
30 Great Deals out of 358 listings starting at $1,900
Used Jeep Grand Cherokee
137 Great Deals out of 3,795 listings starting at $2,995
Used Chevrolet Tahoe
5 Great Deals out of 773 listings starting at $4,200
Used Toyota Camry
98 Great Deals out of 2,243 listings starting at $1,495
Used Chevrolet Silverado 1500
180 Great Deals out of 10,276 listings starting at $2,230
Used Ford Mustang
7 Great Deals out of 1,046 listings starting at $3,995
Used Ford Taurus
21 Great Deals out of 309 listings starting at $2,100
Used Nissan Altima
99 Great Deals out of 1,277 listings starting at $2,200

Used Cars For Sale

2018 Chevrolet Impala For Sale
255 listings starting at $32,895
2017 Chevrolet Impala For Sale
137 Great Deals out of 328 listings starting at $18,945
2016 Chevrolet Impala For Sale
5 Great Deals out of 44 listings starting at $16,888
2015 Chevrolet Impala For Sale
40 listings starting at $11,785
2014 Chevrolet Impala For Sale
5 Great Deals out of 62 listings starting at $11,995

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.