Rough idle and loss of power

Asked by Feb 29, 2016 at 06:56 PM about the 1978 Ford F-150

Question type: Maintenance & Repair

My truck will die if i let it sit and idle for a lil
while but if i pull up to a stop sign it will
choke itself off

6 Answers

76,365

Sounds like it needs a tune-up.

It started after i changed the plugs and wires

76,365

There is a lot more to a tune up than just plugs and wires. Did you set the proper gap on the plugs? Is there a miss?

80

Needs a little carb attention. Try running a can of sea foam in the gas and see if it helps. If not, the carb may need a rebuild. The ethanol in new gas is rough on the rubber parts in carbs.

21,130

You have a 40 year old truck which sounds like it ran OK until you changed the plugs and wires. I'd check the gap on the plugs first then check the wires. If you bought very inexpensive wires, that could be one of the problems.

7,845

Check for vacuum leaks, u may have a brittled vacuum hose that u might've accidentally cracked when u did the spark plugs and make sure u gapped the spark plugs correctly

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 224,490 nationwide F-150 listings starting at $1,200.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,460
  • #2
    dandyoun
    Reputation
    4,650
  • #3
    tennisshoes
    Reputation
    3,270
View All

Related Models For Sale

Used Ford Mustang
600 Great Deals out of 39,967 listings starting at $1,895
Used Ford F-250
447 listings starting at $2,500

Used Cars For Sale

2018 Ford F-150 For Sale
13 Great Deals out of 121,537 listings starting at $20,313
2017 Ford F-150 For Sale
198 Great Deals out of 27,290 listings starting at $17,298
2016 Ford F-150 For Sale
219 Great Deals out of 7,860 listings starting at $15,552
2015 Ford F-150 For Sale
525 Great Deals out of 11,426 listings starting at $11,990
2014 Ford F-150 For Sale
764 Great Deals out of 15,431 listings starting at $9,990

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.