What is causing the bucking in my Ford F100?

Asked by Sep 14, 2017 at 01:06 PM about the 1979 Ford F-100

Question type: Maintenance & Repair

I have a 1979 Ford F100 Ranger with the inline 6. Everything on the truck
works. The truck starts and runs well with only a few hickups. However,
when I drive it for 15-20 minutes the truck begins to buck like a bronco. The
bucking gets worse the longer I drive it. If I stop and let it sit for a bit the
bucking subsides for a while but comes back when the trucks is driven for
15-20 minutes. I am at a loss as to what the problem might be.

2 Answers

127,725

This sounds like the typical Ford Ignition Module trick, I like to replace the distributor pickup at the same time so then you know both units are new.

1 people found this helpful.

Thank you.

Your Answer:

F-100

Looking for a Used F-100 in your area?

CarGurus has 6 nationwide F-100 listings and the tools to find you a great deal.

Postal Code:

Ford F-100 Experts

  • #1
    tennisshoes
    Reputation
    550
  • #2
    MrBlueOval
    Reputation
    330
  • #3
    Rowefast
    Reputation
    300
View All

Related Models For Sale

Used Ford F-150
129 Great Deals out of 12,617 listings starting at $3,895
Used Ford F-250
5 listings
Used Ford Mustang
46 Great Deals out of 1,594 listings starting at $2,400
Used Chevrolet Camaro
35 Great Deals out of 1,059 listings starting at $9,960
Used Chevrolet Corvette
27 Great Deals out of 864 listings starting at $12,900

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.