How can I tell if my 1998 Expedition key is chipped or not?

Asked by Apr 19, 2017 at 07:09 PM about the 1998 Ford Expedition

Question type: Maintenance & Repair

Case in point: got a spare key cut for the 1998 Ford Expedition.  Spare opens the locks, fits in ignition, and starts the vehicle--but then it consistently dies in 1 to 2 seconds.  The real key continues to work just fine.  Makes me think it pry has a chip, but the other pages I'm reading imply that the Home Depot-cut spare shouldn't even allow the Expedition to start.  Thoughts?

2 Answers

75,665

Definitely sounds like you have a transponder key. I saw two listings for the ignition lock cylinder on your Expedition. One with a transponder key and one without. I have a spare key for my '08 Grand Marquis (also a Ford Product) that has not been programmed to the car. It will not start the car at all. Since your truck is 10 years older in probably has a different security system set up. But since the old key works fine I'd definitely believe that you have a transponder (chip) key. HTH. -Jim

79,145

If you have the original key, you can program your new key. So it wouldn't hurt to try this... 1. Insert existing working key in ignition and turn to the ON position then back to the OFF position. 2. Within 5 seconds insert new key in ignition and turn to the ON position.. The security light will light up for 2 seconds to indicate successfull programming. Turn key to OFF position. 3. Start vehicle to test new key.

1 of 1 people found this helpful.

Your Answer

Ford Expedition Experts

  • #1
    T_S_T
    Reputation
    2,290
  • #2
    Larry Sturgis
    Reputation
    1,570
  • #3
    lightGear
    Reputation
    1,060
View All

Related Models For Sale

Used Chevrolet Tahoe
814 Great Deals out of 40,240 listings starting at $1,900
Used Ford Explorer
1,069 Great Deals out of 67,973 listings starting at $1,200
Used Chevrolet Suburban
491 Great Deals out of 23,419 listings starting at $2,700
Used Lincoln Navigator
100 Great Deals out of 3,654 listings starting at $2,900
Used Ford F-150
2,999 Great Deals out of 230,759 listings starting at $1,300
Used GMC Yukon
482 Great Deals out of 19,488 listings starting at $1,995
Used Cadillac Escalade
279 Great Deals out of 12,245 listings starting at $2,995
Used Dodge Durango
270 Great Deals out of 24,914 listings starting at $1,500
Used Ford F-250 Super Duty
433 Great Deals out of 47,754 listings starting at $1,700

Used Cars For Sale

2018 Ford Expedition For Sale
5,946 listings starting at $45,499
2017 Ford Expedition For Sale
149 Great Deals out of 4,957 listings starting at $23,500
2016 Ford Expedition For Sale
78 Great Deals out of 1,458 listings starting at $18,991
2015 Ford Expedition For Sale
36 Great Deals out of 884 listings starting at $18,500
2014 Ford Expedition For Sale
39 Great Deals out of 936 listings starting at $12,990

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.