If you want to change just the bulb, remove the small plastic on top of the light from the engine compartment, and turn the light even with the wire harness attached, the bulb will come out.
Remove the wiring harness from the back of your 1999 Chevy Astro headlamp. Remove the headlamp retaining bolts. The headlamp will come out. Reverse the process to install the new headlamp.
Motorcraft FL-820-S (according to the 1999 Ford Crown Victoria Owner Guide and Ford's website)
you dont either replace assembly or if covers are fogged have them buffed
99 grand marquis 4.6 engine compatalbiltiy between cars/years
In a 1999 Ford Crown Victoria, the Generic Electronic Module (GEM) is typically located under the dashboard on the driver's side. It is mounted to the vehicle's wiring harness, often near the fuse box. To access it, you may need to remove some panels or trim pieces for better visibility.
if both are SOHCor both are DOHC 4.6 it will fit completely
Try looking in the trunk. Might find the sticker on the trunk arm inside.
Under the gas tank inside the box with the black canister.
Its like 14 city 21 highway. Our 99 gets 17 combined.
( Motorcraft FL-820-S ) according to the Owner Guide
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
Probably about 2 or 99 cv took 2.