I need to replace the number 8 ignition coil on my 2001 jaguar S-type V8. I know I will need to replace them all soon but right now I need this one replaced. How do I find the number 8 location?

Simple fault finding will get to the fault.
Use a test lamp and voltmeter to check the power line feeding the ignition system but check the alarm first as disconnecting the battery can cause it to cut out the ignition power.

3.0L Engines

Fig. Removing ignition coil plug-3.0L Engines

1. Before servicing the vehicle, refer to the Precautions Section.
2. For the right hand bank, remove or disconnect the following:
   Negative battery cable Intake manifold Electrical connector Ignition coil securing bolt Ignition coil
   
3. For the left hand bank, remove or disconnect the following:
   Engine cover Electrical connector Ignition coil securing bolt Ignition coil
4. To install, reverse removal procedure.

Hope helps (remember rated and comment this).

P0302= # 2 cylinder misfire,
check plug,plug wire,injector or coil

Hello. Here is the order of things for your truck. The engine firing order for either 4.6L or 5.4L V8 is 1-3-7-2-6-5-4-8. Cylinders are numbered, 1-2-3-4 on the passenger side bank of cylinders beginning at the front of the engine. Cylinders are numbered, 5-6-7-8 on the driver side bank again, beginning from the front of the engine to the back.
Soooooooo the number 6 is the second one from the front of the engine on the drivers side.

No 6 coil is the second from the front of the engine at the right bank of engine , facing the engine from the front for Lincoln LS 3.9 / V8

Check the igniter module.
I assume you have a ecu code telling you #3 coil is missfiring ?
If so also check the crankshaft angle sensor .
If it is not an error code do a compression test and check the injector.
Hope this helps
Regards
George

303-07A: Engine Ignition — 3.0L (4V) 2001 Lincoln LS Workshop Manual DESCRIPTION AND OPERATION Engine Ignition The electronic ignition (EI) system is a coil-on-plug (COP) ignition system.
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SECTION 303-07B: Engine Ignition — 3.9L 2001 Lincoln LS Workshop Manual
DESCRIPTION AND OPERATION Engine Ignition The electronic ignition (EI) system is a coil-on-plug (COP) ignition system
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v-8
SECTION 303-07B: Engine Ignition — 3.9L 2001 Lincoln LS Workshop Manual
REMOVAL AND INSTALLATION Ignition Coil Removal

1. Remove the air cleaner outlet tube. For additional information, refer to Section 303-12 .

1. Remove the bolts and the ignition coil cover.

1. Disconnect the electrical connector from each ignition coil.

1. Remove the ignition coils.
   1. Remove the bolts.
   1. Remove the ignition coils.

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v-6

SECTION 303-07A: Engine Ignition — 3.0L (4V) 2001 Lincoln LS Workshop Manual
REMOVAL AND INSTALLATION Ignition Coil Removal

1. Remove the engine appearance cover.

1. To access the RH bank ignition coils, remove the upper intake manifold. For additional information, refer to Section 303-01A .

1. Disconnect the electrical connector from the ignition coils.

1. Remove the bolts.

1. Remove the ignition coils.

please rate as fixed if this helps.

Replace transmission and sell quickly. I bought 2001 s-type in October 2008. I have not been able to drive it. 1st thing was gearbox fault message which turned out to be transmission. Ford can rebuild cheaper. Next thing to happen was all seals needed replacing. Then all coils needed to be replaced. Coils keep going out. Needs new computer which has 8 year/80000 mile warranty on, but Jag would not honor ($3000). Needless to say my pretty jag sits in the driveway. Had to get another car. Went with Lincoln LS V8. GREAT car!

the firing order is 1-3-7-2-6-5-4-8, cylinders are number right bank (passenger side) 1-2-3-4, left bank (drivers side) 5-6-7-8

standing in front of car cylinder # 1,2,3,4 on the left passenger side and # 5,6,7,8 on right drivers side. in that order for 2000 4.0 jaguar s type