why is my '85 F-150 getting too much fuel

Asked by katlin Sep 27, 2012 at 10:27 PM about the 1985 Ford F-150

Question type: Maintenance & Repair

i have a 1985 F-150 302 4 speed fuel injected it will start but it only runs good for about 5 seconds i
have replaced plugs, wires and the fuel pressure regulator. It wont idle. When i play with the gas it hits
and misses with about five second intervals where it wont miss then goes back to spitting and
sputtering. I have sprayed the vacuum hoses with carb cleaner and noticed no improvement so i don't
think it's a vacuum leak. PLEASE HELP!!!

1 Answer
120

Redpepr65 answered 12 years ago

Try cleaning the mas and the throttle body with cleaner. If there's dirt build up on mass air sensor and carbon build up on the throttle body that will cause that problem... Good luck

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • why is my '85 F-150 getting too much fuel 1 Answer

    i have a 1985 F-150 302 4 speed fuel injected it will start but it only runs good for about 5 seconds i have replaced plugs, wires and the fuel pressure regulator. It wont idle. When i play with the ...

    1985 Ford F-150

    -

    Maintenance & Repair

  • why carb loading and backfiring when let off throttle on my 85 f-150 300 6cyl. 1 Answer

    runs good when accelerarting when letting off fuel throttle carb loads up and backfires. when idling rpm revs up and down.and starts anytime!

    1985 Ford F-150 STD Standard Cab SB

    -

    Maintenance & Repair

  • My f-150 is leaking engine coolant. Why? 1 Answer

    I had a water pump problem so we installed a new pump. After driving for about 100 miles the truck started over heating radically and discharging all it's coolant. I then replaced the thermostat and g...

    1987 Ford F-150

    -

    Maintenance & Repair

  • Why is my 5.0 F-150 overheating? 6 Answers

    I have installed a new thermostat and a new water pump along with plenty of coolant.Any suggestions as to why it still overheats after running for about 10 minutes? I also drained the radiator several...

    1987 Ford F-150

    -

    Maintenance & Repair

  • why is my 1990 f-150 backfireing threw the plentum 6 Answers

    my truck is backfireing threw the plentum I have checked the fuel pressure and it idles at 38 psi and drops to 32 psi on rev is that proper pressure if so what ealse could be causeing the problem

    1990 Ford F-150 XLT Lariat Extended Cab LB

    -

    Maintenance & Repair

Shortcuts

Search Ford F-150 Questions

CarGurus Experts

  • #1
    OJ
    Reputation
    42,520
  • #2
    Gene Arnett
    Reputation
    16,040
  • #3
    Rowefast
    Reputation
    15,860
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-250
6 listings
Used Ford Mustang
65 Great Deals out of 1,259 listings starting at $4,995
Used Ford Ranger
18 Great Deals out of 1,529 listings starting at $2,888

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.