About $9.00 each.
yes 91 and down there are two types.
On the 3.0L the air cleaner box is in the way. Other than that all you have to remove is the plug wires.
factory is best fuel efficient which is motorcraft always use the same spark plugs that factory always uses its the best way I disagree using Bosch Platinum Plus 2 plugs Brought the Mileage Back to like new average on my car. (92 Lincoln Towncar 4.6L). Then Followed up with new O2 sensors an like magic 22mpg ave!!
Check
the factory rating was 18 mgp, personally i get around 15 after replacing spark plugs and cleaning fuel system but i drive wide open wherever i go...
COIL
I just had this happen with my 93 park ave ultra, they changed my spark plugs and the problem went away.
The gap is .060
The address of the Chevy Chase Community Branch is: 8005 Connecticut Ave., Chevy Chase, 20815 5997
Does it turn over? Does it have fuel and spark? Does it have compression?
on the top of the engine there is a black cover with 6 screws holding it in place. remove screws to gain access of spark plug wires and coils. start from the left and pull up black boot. inside you will see the spark plug. use a 6 inch extension with a spark plug socket to remove. next remove the coil pack to the right. its held down by two 10mm bolts. once bolts are removed pull up on coil pack. inside is your next spark plug to remove. its the same process with the last two. you will have two spark plugs wire in a new kit. you dont get 4 because the coil packs (2) will spark for 2 of the 4 cylinders. the plugs are to be gapped @ .070 to .080 the plugs should be NGK brand. its very easy and anyone with basic tools can do the job. takes 20-30 minutes ave.
Three on each side and two on the back.