Detail: Replaced ignition key cylinder and keys in a 1998 Ford mustang. Now car won't start.
Solution: If your car has a factory alarm it may be that you disabled the ignition , you need to have a professional do this kind of work as their is a code that needs to be entered into the computer , only a mechanic has the equipment do to it. , Hi, A 6ya expert can help you resolve that issue over the phone in a minute or two. Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US. The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones). click here to download the app (for users in the US for now) and get all the help you need. Good luck! , He may have locked up the pin sequence. You might need to buy a new switch not that exspensive. Stay away from the dealership or it will be. , Add Duplicate Key (PK3 or PK3+ key) 1. Insert an existing working key into the ignition cylinder. 2. Turn the ignition cylinder to ON (RUN) and back to OFF. 3. Remove the existing key and, within fifteen 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. , This car has drillable shear pin screws on the bottom of the lock yoke you must drill these out. then release the clip to the cylinder. you must get a new set of break-off shear pin head screws from the dealer to finish the job. , it's your upper intake manifold gasket. it has a crack in it and needs to be replaced. your getting to much air and not enough gas. mine did the same thing. , take the chip out of the old key and then fit it in the new key ,or tape it to teh transponder behind the covers on the steering column