I have 1999 Explorer & the engine Idles high @about 1250 to1400 rpm's @ stand still sometimes it will Idle down @ a stop sign or light but always! What can be my Problem?

Asked by GuruTVWF4 Jun 21, 2018 at 12:03 PM about the 1999 Ford Explorer 4 Dr XLT SUV

Question type: Maintenance & Repair

I put in the Subject!

2 Answers

26,810

How long since a tune-up? Any applicable trouble codes? Sometimes with hi idle, tranny in park, I block off the mouth of throttle body, for testing, it should kill the engine, if very little or no effect on the idle, you got false air getting in there from somewhere? Also, check and clean anything that has to do with idle air system. If you have maf sensor, with everything off, unplug it. Take the vehicle for a spin, see if it does better? If it does better, check the maf system.

Your Answer:

CarGurus Experts

  • #1
    OJ
    Reputation
    30,850
  • #2
    TransAm77
    Reputation
    7,790
  • #3
    Gene Arnett
    Reputation
    7,280
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
311 Great Deals out of 13,471 listings starting at $4,888
Used Ford Expedition
17 Great Deals out of 656 listings starting at $7,894
Used Chevrolet Tahoe
20 Great Deals out of 774 listings starting at $7,499
Used Jeep Grand Cherokee
135 Great Deals out of 3,606 listings starting at $4,295
Used Toyota 4Runner
20 Great Deals out of 536 listings starting at $7,770
Used Dodge Durango
57 Great Deals out of 1,822 listings starting at $6,987
Used GMC Yukon
17 Great Deals out of 934 listings starting at $5,890
Used Chevrolet Silverado 1500
176 Great Deals out of 7,546 listings starting at $7,777

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.