misfire cycl 6. replaced 8 coils; head gasket and manifold. still same problem. on 2002 Lincoln LS

Car cranks on start for about 3-4 seconds before starting, once in a blue moon a popping noise is heard from the engine at start followed by a bad smell in the cabin if a/c is on. All 8 coils (COP) have been replaced at the same time--spent almost $3K so far.

1 answer 1 comment
ck the #6 inj and coil plugs for proper pwr and pulse.this could be a wiring issue
Thanks for the reply. Will look into it this week.