I HAVE A 98 FORD EXPLORER THAT WILL ONLY START WIITH ONE OF TWO KEYS AND THEN ONLY SOMETIMES. COULD IT BE A PROBLEM WITH THE CHIP IN THE KEY COMMUNICATING WITH THE COMPUTERS ANTI-THEFT MODULE?
Since u have only one working key U will need to have the Ford dealer hook a Ford only peice of electronic test equip and program new keys, cost is about $170
Same Problem
Dec 14, 2008
-   I had the same problem with my explorer, and yes it probably is one of those keys. You will need to take your car and all the keys you have for it to a Ford authorized dealership so they can check your keys to make sure they are PATS keys, which is fords anti-theft key/ignition system. They may need to reset the computer in your car and then reprogram all of your keys (if they are PATS keys, if one is a valet key that may also be the problem). If it is a valet key, this key does not have a chip inside it, then your car may be thinking someone is trying to steal it. Call a Ford dealership and ask if they have the diagnostics computers to check your PATS system and keys. Good luck.
-   Guest
That's a very good posibility. If the anti-theft light flashes rapidly when you try to start the car with the suspect key, you will need to have a dealer program the keys. Good Luck and please leave rating.
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