1998 Ford F-150 won't start w/ the key, but will w/ remote start.

When you turn your key nothing happens? Is your truck stick or automatic? Have you tried to start with screw drive on starter solenoid under hood on passenger fender?

check fusible link also check for power at starter first..make sure trigger wire is good at starter

yes its a fairly common fault with all VW motors from this age including skoda and seat

do you have another key to try? usually all the keys dont go bad at one time.

sounds like a main fuse or a fusesable link

Battery or starter solenoid

probably needs a new ignition switch,(NOT the key switch) the ignition switch is located under the dash on the side of the column,its white and about 3 inches long and costs about $15.00 new

Always verify that there are no aftermarket devices causing interference, such as alarms, remote starters or other devices utilizing transponders. Devices that power up the PCM without powering up the PATS Control module can experience no-start concerns. It is probbally a key issue depending on the PATS system in that truck you may have to have more than one key coded into the transponder. Try you spare key.

For convenience, I'm also including a list of other vehicles that these instructions apply:
Ford Contour ‘98–up
F-150 ‘98-up
Ford Crown Victoria ’97-up
Ford Escort 99-up
Ford Excursion ‘00-up
Ford Expedition ‘98–up
Ford Explorer ’98-up
Ford Focus ‘00-up
Ford Mustang ’96-up
Ford Ranger ’98-up
Ford Taurus ’96-up
Ford Windstar ’98-up
Lincoln Continental ’98-up
Lincoln LS ’00-up
Lincoln Mark VIII ’98-up
Lincoln Navigator ’98-up
Lincoln Town Car ’98-up
Mercury Grand Marquis ’97-up
Mercury Mountaineer ’98-up
Mercury Mystique ’98-up
Mercury Sable ’96-up
NOTE: These instructions may apply to more or less vehicles than those listed above. I cannot confirm that these procedures work for every year and model listed. See your dealer if to confirm this.
On-Board Programming Method "B" for Ford keys (1996 -early 1998 Ford, Lincoln, Mercury)
If you want to initiate a new master key.... 1. Insert new key into ignition cylinder and turn it to the ON (RUN) position. The security light on the dash will flash for fifteen minutes.
2. When the security light stops flashing, you have FIVE minutes to start the next step. Turn the ignition cylinder OFF and then back to the ON (RUN) position. The security light on the dash will flash for fifteen more minutes.
3. When the security light stops flashing, you have FIVE minutes to start the next step. Turn the ignition cylinder to OFF and then back ON (RUN) position. The dash will flash for fifteen more minutes.
4. After the security light stops flashing the third time, the new key has been programmed into the vehicles computer and will operate the car. It has replaced ALL the previous electronic key codes and is the ONLY key programmed into the vehicles computer.
If you want to add a key.... 1. Insert an existing key into the ignition cylinder.
2. Turn the ignition cylinder to ON (RUN) and back to OFF.
3. Remove the existing key and, within 15 seconds, insert the new key and turn it to ON (RUN).
4. The security light will light up for two seconds to indicate success in programming the key into the vehicle.
5. Don't attempt to start the vehicle with any key for at least 1 minute.
On-Board Programming Method "C" for Ford keys (Later 1998-newer Ford, Lincoln, Mercury)
If you want to initiate a new master key.... 1. This requires that the vehicle be connected to special dealer equipment. There are two ten minute delays involved while this device erases all existing key programming and sets up the vehicle computer to accept new key codes. Two new keys should be ready because the system requires a minimum of two keys in the program. After the first two keys are programmed, additional keys can be entered individually by following the instructions for adding duplicate keys (below).
If you want to add a key.... **You must have two original keys to perform this procedure. If you only have one key, you WILL have to take it to the dealer to get it programmed**
1. Insert and existing (working) key into the ignition cylinder.
2. Turn the ignition cylinder ON (RUN) and back to OFF. Ignition should stay on for at least ONE SECOND.
3. Remove the existing key and, within TEN seconds, insert a second working key and turn it to ON (RUN) and the back OFF. Ignition must be in ON for at least ONE second, but no more than TEN seconds. Remove the key.
4. Insert the new key before TWENTY seconds have elapsed and turn it to ON (RUN). Leave it the ON position for at least ONE second and turn back to OFF.
5. The security light will light up for THREE seconds to indicate that the new key has been successfully programmed.
6. To program additional keys, repeat steps 1 through 5
As a precautionary measure for all of the above procedures, you should wait at least one minute after you have performed this until you start your vehicle.

please remove all extra keys and gadjets from keyring and go through the painful exercise of starting the old girl and once started go for a drive good luk if all goes well replace ignition switch good luck with this answer