1999 Alero how do i test ignition coil pack
Check the ignition coil, or the fuel pump.
you have to buy a whole distributor. coil is not sold by itself
on top of the spark plug
its on the back passenger side of the engine.
Each spark plug has it's own ignition coil, they are on the spark plug itself. Unplug the ignition coil connector, remove the bolt holding the coil in place, pull the coil off of the spark plug and out of the valve cover. Install the new coil.
Suggest you visit your local public library, and find the Chilton's Repair Manual for the 1999 Ford Expedition. They show the wiring diagram for the ignition coil in the Manual.
Yes
The 1999 Jeep Cherokee ignition coil used a black wire for the negative wire. The negative wire should be on the left post.
Each cylinder has its own coil mounted on the top of each spark plug boot
under the coil pack in the engine compartment. The coil pack is where the plug wires hook into it.
I believe what your asking is what the ecu is saying is wrong about the ignition signal CEL.I would believe its either your dist pickup or your coil.