candjhaug@yahoo.com

Asked by Jul 27, 2014 at 12:29 AM about the 1991 Ford F-250 2 Dr XL 4WD Standard Cab LB

Question type: Maintenance & Repair

Having trouble turning down the idle. The truck idles at 1300 rpm and emissions needs it
down to 850 to 900 rpm. I have backed off the idle adjustment as far as it can go. Know
change ????

3 Answers

116,505

Check for vacuum leaks. Also check pcv valve. If it's stuck open this can happen.

1 of 1 people found this helpful.
70,215

Check for vacume leak,s in hoses,s,bad one,s will make it idle high.

1 of 1 people found this helpful.
70,215

Diito dandy

3 of 3 people found this helpful.

Your Answer

F-250

Looking for a Used F-250 in your area?

CarGurus has 448 nationwide F-250 listings starting at $2,500.

ZIP:

Ford F-250 Experts

  • #1
    tennisshoes
    Reputation
    680
  • #2
    F_O_R
    Reputation
    370
  • #3
    dandyoun
    Reputation
    350
View All

Related Models For Sale

Used Ford F-150
3,335 Great Deals out of 221,765 listings starting at $1,200
Used Ford F-350
285 listings starting at $4,900
Used GMC Sierra 1500
1,194 Great Deals out of 64,603 listings starting at $999
Used Ford Mustang
603 Great Deals out of 39,402 listings starting at $1,895
Used GMC Sierra 2500
151 listings starting at $5,795

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.