rpm goes up and down. Sometimes engine goes off. Somebody have a idea why ?

Asked by Nov 10, 2010 at 07:02 AM about the 1999 Ford Expedition 4 Dr XLT 4WD SUV

Question type: Maintenance & Repair

6 Answers

Bad EGR or throttle position scensor.

1 of 1 people found this helpful.
40

maf sensor?

2 of 2 people found this helpful.
35

items to look at would be mass air flow sensor, idle air control motor, and fuel pump

355

dont forget your ECTS (Engine Coolant Temperature Sensor)

ECTS wont cause his problem,all a bad one will do is give a false temp reading to computer and gaduge,yheir is one for both,but this is not his problem.

355

well im not going to argue with you about that one. it could also be an intake leak. check all your vacuum lines and intake manifold.

Your Answer

Expedition

Looking for a Used Expedition in your area?

CarGurus has 17,687 nationwide Expedition listings starting at $1,989.

ZIP:

Ford Expedition Experts

  • #1
    T_S_T
    Reputation
    2,040
  • #2
    Larry Sturgis
    Reputation
    1,490
  • #3
    lightGear
    Reputation
    1,040
View All

Related Models For Sale

Used Chevrolet Tahoe
856 Great Deals out of 44,858 listings starting at $1,980
Used Ford Explorer
1,179 Great Deals out of 76,958 listings starting at $2,100
Used Chevrolet Suburban
499 Great Deals out of 25,279 listings starting at $1,799
Used Ford F-150
3,190 Great Deals out of 239,353 listings starting at $1,300
Used Lincoln Navigator
85 Great Deals out of 3,962 listings starting at $1,500
Used GMC Yukon
621 Great Deals out of 23,423 listings starting at $1,200
Used GMC Yukon XL
247 Great Deals out of 15,363 listings starting at $1,900
Used Cadillac Escalade
268 Great Deals out of 12,723 listings starting at $2,000
Used Ford Excursion
13 Great Deals out of 839 listings starting at $2,300
Used Dodge Durango
317 Great Deals out of 25,653 listings starting at $1,500
Used Ford F-250 Super Duty
387 Great Deals out of 53,780 listings starting at $1,899
Used Toyota 4Runner
359 Great Deals out of 27,326 listings starting at $1,750
Used Jeep Grand Cherokee
1,052 Great Deals out of 84,380 listings starting at $1,200

Used Cars For Sale

2018 Ford Expedition For Sale
569 listings starting at $48,695
2017 Ford Expedition For Sale
58 Great Deals out of 7,811 listings starting at $24,883
2016 Ford Expedition For Sale
54 Great Deals out of 1,545 listings starting at $23,000
2015 Ford Expedition For Sale
17 Great Deals out of 698 listings starting at $18,995
2014 Ford Expedition For Sale
33 Great Deals out of 867 listings starting at $11,000

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.