Were is number 4 spark plug is at on 1999 crown vic is located at

Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.

To confirm the problem, the basic troubleshooting is required.

Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

---------

This will help.
Thanks.

They should be mounted down in the cylinder heads, you'll need to remove each coil pack. A long extension and 5/8in spark plug socket and an extendable magnet will help. Also, you may need to remove the fuel rail to get to move the coil packs.

they are coil on plug.there is a coil for each plug,and they are underneath the valve covers.the platinum tip plugs are changed every 160000 kilometers.

.052-.056

I ~think~ the 1999 is the same as the 2000 (mine is a 2000 P71)

The 2000 CVPI (Crown Vic Police Interceptor) owners manual recommends the following:

Engine Oil - Motorcraft SAE 5W-30 Super Premium Motor Oil 5.0 quarts

Transmission Fluid - Motorcraft Mercon V ATF 13.9 quarts (fluids Mercon & Mercon V are NOT INTERCHANGEABLE, DO NOT MIX)

Fuel Tank - 19.0 gallons

Break Fluid - DOT 3


Rear Axle Lubricant - Motorcraft 80W-90 Premium Rear Axle Lubricant 3.75 pints (add 4 oz of Additive Friction Modifier C8AZ-19B546-A or equilavent meeting Ford Spec. EST-M2C118-A for complete refill of Traction-Lok Rear Axles)

Engine Data - 4.6L V8 Engine
Cubic Inches - 281
Required Fuel - 87 Octane
Firing Order - 1-3-7-2-6-5-4-8
Spark Plug Gap - 1.3-1.4 mm (0.052-0.056 inch)
Ignition System - Coil On Plug
Compression Ratio - 10.0:1

I hope this helps!

I would try to replace your spark plugs, and spark plug wires, My 88 Vic did the same thing...now it runs like a champ....you could also try fuel injector cleaner.

well if you have checked the spark plugs and they look good then its probly the coil If the plugs have never been replaced i would start with a tune up and see if this fixes the problem. If not there is no good way for you to test it you would need a computer to hook up to the car

Locations In Case this Picture Doen not SHOW UP FOR YA --
WIPER Fuse ok Lookin at the box with the Round Circle In TOP RIGHT Corner Wiper is Number 2 Bottom from That Circle would be 2nd one from right Suppose to Be a 30 amp fuse Hopin this Helps Ya If so Please RATE Me AS High as You feel I Dererve Thank You and Good Luck with the CROWN VIC
Notes

not coil coil it wouldnt fire at all it is either a plug or a wire replace the wire and plugs and that will fix it

IS THIS A 99 CROWN VIC? IF SO IS IT MISFIRING? IF THIS IS THE CASE YOU MORE THAN LICKLY NEED PLUG WIRES.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/terry_db4da071b7da3ac1