KEEPS MISSFIRING IN CYLNDERS 4 5 6

Asked by Feb 02, 2014 at 10:17 PM about the 2004 Audi A6 3.0 quattro Sedan AWD

Question type: Maintenance & Repair

I REPLACED COILS AND PLUGS AND THE SAME CODES COMEBACK PLEASE HELP!

5 Answers

try spraying those spark plug wires with WD-40...is a water displacer and will stop the shorting to ground (that you cannot see)~

1 of 1 people found this helpful.
20,705

You may have dirty injectors or the ECM is only grounding those at certain times. First try a bottle of seafoam injector cleaner. The type you pull a vacuum hose off from the intake and put down in the can. See if this works.

2 of 2 people found this helpful.
20,705

let us know

21,695

also conceder a vacuum leak at intake on that side, check fuel trim on scanner ,try suggested other stuff first ,I'm asking beyond DIY maybe.

1 of 1 people found this helpful.
20,705

Yes jimmy is correct if 4 5 6 are on the same side a vacuum leak could possibly set these codes too.

1 of 1 people found this helpful.

Your Answer

A6

Looking for a Used A6 in your area?

CarGurus has 8,185 nationwide A6 listings starting at $2,355.

ZIP:

Audi A6 Experts

  • #1
    JRKPerformax
    Reputation
    270
  • #2
    Tom Demyan
    Reputation
    220
  • #3
    tenspeed
    Reputation
    210
View All

Related Models For Sale

Used Audi A4
323 Great Deals out of 13,192 listings starting at $1,899
Used BMW 5 Series
534 Great Deals out of 16,990 listings starting at $1,500
Used Audi A8
68 Great Deals out of 1,937 listings starting at $3,995
Used Mercedes-Benz E-Class
710 Great Deals out of 23,255 listings starting at $1,795
Used BMW 3 Series
1,161 Great Deals out of 37,232 listings starting at $1,000
Used Audi S6
7 Great Deals out of 789 listings starting at $4,675
Used Audi S4
43 Great Deals out of 1,768 listings starting at $3,500
Used Mercedes-Benz C-Class
865 Great Deals out of 30,903 listings starting at $1,500
Used BMW 7 Series
114 Great Deals out of 5,635 listings starting at $2,999
Used Mercedes-Benz S-Class
165 Great Deals out of 8,044 listings starting at $2,000

Used Cars For Sale

2018 Audi A6 For Sale
3,584 listings starting at $45,955
2017 Audi A6 For Sale
10 Great Deals out of 935 listings starting at $36,896
2016 Audi A6 For Sale
8 Great Deals out of 435 listings starting at $24,650
2015 Audi A6 For Sale
41 Great Deals out of 705 listings starting at $20,455
2014 Audi A6 For Sale
33 Great Deals out of 748 listings starting at $15,995

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.