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

370

You should change your plug wires.

27,535

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
    10,220
  • #2
    dandyoun
    Reputation
    4,830
  • #3
    tennisshoes
    Reputation
    3,660
View All

Related Models For Sale

Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150
Used Ford F-250
401 listings starting at $2,300
Used Ford Explorer
801 Great Deals out of 64,315 listings starting at $1,000

Used Cars For Sale

2018 Ford F-150 For Sale
79 Great Deals out of 138,368 listings starting at $17,895
2017 Ford F-150 For Sale
144 Great Deals out of 10,171 listings starting at $19,499
2016 Ford F-150 For Sale
213 Great Deals out of 8,805 listings starting at $14,500
2015 Ford F-150 For Sale
280 Great Deals out of 10,501 listings starting at $11,990
2014 Ford F-150 For Sale
414 Great Deals out of 11,726 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.