Truck is idling really high, 1500-2500 rpm, and when i shut it off, it sometimes tries to stay running, what is the problem?

1,205

Asked by Jul 09, 2014 at 01:09 AM about the 1986 Ford F-150 STD Standard Cab LB

Question type: Maintenance & Repair

1986 ford f150, with the 300 six cylinder, today it started idling really high after i brought it
home from work,so i looked at the carb And thought i might be able to figure it out, no
luck. After a couple times of turning it off and on, the damn thing tried to catch itself with
the IGNITION OFF, i got no clue where to go, what to do or who to ask, i need any advice
you got for me, THANKS!

2 Answers

21,005

"Where to go" is to a good mechanic- that is a simple machine, and it should be easy to figure it out- if it just started with the high idle, check your accelerator linkage all the way from the pedal to the carb- maybe some piece of linkage got tweaked- if you want to fix your own truck, you will need vision and perseverance- and a shop manual and some tools-

21,005

Look around the carb, make sure all little vacuum hoses are connected- check that your choke is not stickin'

Best Answer

Your Answer

Add photo

Related Questions

  • truck won't stay running 16 answers

    have had some problems keeping truck running, a couple of weeks ago was stopped at red light and truck died got towwed home now it will start but won't stay running runs good for about a minute and sm...

    1991 Ford F-150 S SB

    -

    Maintenance & Repair

  • if your truck cranks but will not start, what would be the problem? 114 answers

    STARTING PROBLEM I have a 2000 ford f150 5.4L the truck cranks but will not start some times. if i spray starter fliud into the booster in will start up. but other times the truck will start then just...

    2000 Ford F-150 Lariat Extended Cab SB

    -

    Maintenance & Repair

  • 4.9L EFI Electrical Problems 11 answers

    Can't get it to idle smoothly or run without bucking. Replaced plugs, wires, distributor, coil, - basically everything but the wiring harness. Fuel isn't the problem, fuel pressure in the rail is wi...

    1988 Ford F-150

    -

    Maintenance & Repair

  • my truck wont start or idle by itself 7 answers

    i have a 2004 ford f150 5.4l lariat triton it turns over but wont start and if i spray starter fluid in it ; it will start but i gotta stay on the gas it wont idle alone but what i dont get is why w...

    2004 Ford F-150 Lariat Ext. Cab SB 4WD

    -

    Maintenance & Repair

  • High Idle issue? 3 answers

    So I have had my 1992 F150 for about 3 years now. It had one previous owner before me and it must have been an older man because it was obvious he took great care of it. Now me on the other hand, I ...

    1992 Ford F-150

    -

    Maintenance & Repair

F-150

Looking for a Used F-150 in your area?

CarGurus has 212,369 nationwide F-150 listings starting at $1,000.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,980
#2 dandyoun
dandyoun
Reputation 4,180
#3 tennisshoes
tennisshoes
Reputation 2,520
View All

Related Models For Sale

Used Ford Mustang
363 Great Deals out of 44,352 listings starting at $1,000
Used Ford F-250
512 listings starting at $3,500
Used Ford Ranger
203 Great Deals out of 6,718 listings starting at $1,450
Used Jeep Wrangler
392 Great Deals out of 19,082 listings starting at $3,000

Used Cars For Sale

2017 Ford F-150 For Sale
4 Great Deals out of 103,480 listings starting at $18,199
2016 Ford F-150 For Sale
154 Great Deals out of 41,650 listings starting at $16,995
2015 Ford F-150 For Sale
197 Great Deals out of 7,255 listings starting at $17,480
2014 Ford F-150 For Sale
431 Great Deals out of 11,725 listings starting at $10,700