92 f150 4.9 running on 3 cylinders getting gas & spark I unplug 1st 3 plugs and nothing changes

10

Asked by Jun 21, 2014 at 09:17 PM about the 1992 Ford F-150 S LB

Question type: General

2 Answers

380

You should change your plug wires.

28,305

Basics - Basics - Basics. Compression test, Vacuum leaks (especially the 4.9L with 70 pounds of manifolds hanging on side of the motor), Plugs and wires (as mentioned). A knowledgable technician with proper diagnostic skills would help too. You've posted this one before haven't you?

Your Answer:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    10,790
  • #2
    dandyoun
    Reputation
    4,970
  • #3
    tennisshoes
    Reputation
    3,890
View All

Related Models For Sale

Used GMC Sierra 1500
794 Great Deals out of 60,062 listings starting at $1,500
Used Ford Mustang
310 Great Deals out of 39,695 listings starting at $1,312
Used Ford F-250
389 listings starting at $3,495
Used Ford Explorer
870 Great Deals out of 69,547 listings starting at $1,275
Used Ford Ranger
105 Great Deals out of 4,188 listings starting at $1,700

Used Cars For Sale

2018 Ford F-150 For Sale
118 Great Deals out of 125,826 listings starting at $17,644
2017 Ford F-150 For Sale
131 Great Deals out of 8,075 listings starting at $16,001
2016 Ford F-150 For Sale
218 Great Deals out of 9,598 listings starting at $14,500
2015 Ford F-150 For Sale
289 Great Deals out of 11,433 listings starting at $9,950
2014 Ford F-150 For Sale
353 Great Deals out of 10,026 listings starting at $7,995

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.