1. Standard Key:
* Dealership: This is the most straightforward option. Take your vehicle's title or registration to prove ownership. The dealership can cut a new key based on your vehicle's identification number (VIN). Expect to pay a higher price than other options.
* Locksmith: A reputable locksmith should be able to cut a key based on your existing key or the lock cylinder. This is usually cheaper than the dealership. Make sure to choose a locksmith with good reviews.
* Auto Parts Store (Less likely for E-350): Some auto parts stores offer key duplication services, but the complexity of an E-350 key might make this less feasible. It's worth checking with your local stores, however.
2. Transponder Key (More likely for a 1999 E-350):
This is a key with an embedded chip that communicates with the vehicle's immobilizer system. If your key doesn't start the vehicle, it's likely a transponder key. You'll need more specialized services:
* Dealership: This is often the best option for transponder keys. They have the necessary equipment to program the new key to your vehicle's system.
* Locksmith: Many locksmiths now specialize in transponder keys and can program them. Again, check reviews carefully. Make sure they explicitly state they handle transponder keys for Ford vehicles.
* Auto Parts Store (Highly Unlikely): Auto parts stores rarely program transponder keys.
Before you go:
* Find your VIN: You'll need this for any service. It's usually located on the driver's side dashboard, near the windshield.
* Check your existing keys: Do you have any spare keys? Having an existing key can simplify the process and save you some money.
* Get quotes: Call several dealerships and locksmiths before making a decision to compare prices.
In short, for a 1999 Ford E-350, a locksmith or dealership are your best bets, especially if you suspect it's a transponder key (which is very likely). The dealership will likely be the most expensive but often the most convenient.