Replaced coil packs on 99 lincoln navigator and now when i place in drive it dies instantly as if converter is in lock up, car runs fine in park and in reverse. Check engine light is OFF andchecked the connection at wiring harness on side of transmission, can anybody tell me how to test solenoid pack ?

SOURCE: 2003 Lincoln LS check engine light

I had the same problem with a 2004 LS. I took it to the dealer and turned out that 6 ignition coils were out and was factory defect. Ford extended the warranty for the ignition coil. All work and parts "no charge" this service was done about a month ago

SOURCE: 2004 Lincoln navigator misfire on cylinder 8 error code p318

Replace the coil pack once more. I went through 2 new ones on my f150 on one cylinder. One worked, the other didn't (both new off the shelf). Condensation build up in the boot caused mine to misfire. Anytime you replace a coil pack, squirt a little silicone grease inside. This will prevent condensation from hitting your plug. Fords are notorius for this problem, especially if you live in a humid area. Also, make sure and clear the codes after you make the repair.

Andy

• 90 Answers
• Posted on Jul 07, 2009

SOURCE: 02 navigator misfire #7 cyl still after i changed plugs and coil

You've tried everything but getting the timing checked out. You've done all the other parts of a tune-up but that.

When you changed the spark plugs did you notice #7 was especially dirty or greasy, this could point to a seal being broken or a piston ring that needs replacing.

SOURCE: 2003 Lincoln Navigator stumbles/bucking under mild acceleration

I have a 2003 Nav with the exact same problem. I've found it diminishes when taken out of overdrive. Also it's intermittent but more towards bucking. Sorry to post this under solutions.

SOURCE: where is the coil pack located on lincoln ls v8 7

Driver side valve cover
7mm socket to remove coil covers and coil

1 thru 4 pass side
5 thru 8 drivers side
Front to back