Misfire

Asked by Sep 18, 2017 at 12:36 AM about the 1999 Ford F-150

Question type: Maintenance & Repair

I have a check engine light on for a non cat
damaging misfire the shop said on 7 and 5. on an
5. Triton the. Replaced spark plugs and coils still
there shop said it's non cat damaging misfire the
truck runs great no smoking no hesitation no
nothing shop said it could be a valve of some kind
or injectors. Could there be anything else? Like I
said there's no smoking or hesitation of any kind
runs amazing. Any help would be greatly
appreciated

2 Answers

1,825

Once there is a misfire the cat will get damaged. There is no such thing as a none cat damaging misfire. If you already replaced that cool and plug make sure u have good compression and that the fuel injectors are working

75,965

I would go to a different shop. Miss-fires will put raw fuel into the exhaust, this fuel burns at the catalytic converter and it can overheat and melt the substrate ruining the catalyst. It all depends how frequent the miss-fire is and how much fuel in not burning. A flashing check engine light will signal this to you.

Your Answer:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    13,020
  • #2
    dandyoun
    Reputation
    5,310
  • #3
    tennisshoes
    Reputation
    4,480
View All

Related Models For Sale

Used Chevrolet Silverado 1500
90 Great Deals out of 9,471 listings starting at $3,500
Used GMC Sierra 1500
97 Great Deals out of 9,249 listings starting at $3,999
Used Ford F-250 Super Duty
15 Great Deals out of 958 listings starting at $4,499
Used Toyota Tundra
44 Great Deals out of 1,592 listings starting at $4,400
Used Dodge Ram 1500
13 Great Deals out of 452 listings starting at $3,900
Used Toyota Tacoma
37 Great Deals out of 1,649 listings starting at $5,450
Used Ford Mustang
53 Great Deals out of 1,605 listings starting at $1,980
Used Ford F-350 Super Duty
24 Great Deals out of 1,277 listings starting at $8,000
Used Ford Explorer
46 Great Deals out of 2,473 listings starting at $3,995
Used Ford F-250
9 listings
Used Chevrolet Silverado 2500HD
7 Great Deals out of 1,480 listings starting at $9,950
Used Chevrolet Tahoe
13 Great Deals out of 1,124 listings starting at $4,999

Used Cars for Sale

2019 Ford F-150 For Sale
458 listings starting at $39,136
2018 Ford F-150 For Sale
13 Great Deals out of 6,209 listings starting at $25,599
2017 Ford F-150 For Sale
13 Great Deals out of 420 listings starting at $21,900
2016 Ford F-150 For Sale
38 Great Deals out of 1,181 listings starting at $16,995
2015 Ford F-150 For Sale
21 Great Deals out of 535 listings starting at $16,988

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.