Have a 91 Dodge Stealth Coil pack for 3/6 will not fire. Replaced coil pack still dead also tried new ignition modoule and it was still dead any ideas on what could be wrong

No cylinders fire at same time. 6 & 3 must be from same coil-ignition coil C-that is the one with the problem. And the secondary circuit- that is the spark firing portion of the coil. Coils have a primary winding circuit and a secondary wire winding circuit. The secondary comes out of coil as the tower, or the spark plug wire tower -the business end of the coil leading to the plug.

You could have a bad new coil (happens occasionally) or the connection to that coil may be the problem-the connection where the coil snaps onto the coil pack assembly. Try swapping that coil (coil C) with another one there and see if problem follows the coil. See? Keep your plug wires the same, just swap coils with another and see if the new position for suspect coil causes other cylinders to misfire. If a different coil in that "C" position causes same code, then it is not the coil itself, but probably the base assembly that the coil connects to.

These ignition systems use what is called a waste spark, or exhaust waste spark system. The coil will send spark to 6 & 3 simultaneously, but since one is always on the exhaust stroke while the other is on the compression (firing) stroke, the exhaust spark is very weak, and all the energy from coil is directed to the compression stroke cylinder. It sounds crazy but it works great.

Since you say it runs bad just as before, that indicates the coil is not the problem, but something wrong with the base of the coil pack . This is where the wiring is directed to the coils.

yes as will a cracked distributer cap, and a bad coil will only fire when it decides to having a nomiss nomiss miss nomiss situation.

Check engine light on ? Code's ? What engine ? 2.3 l 4cylinder or 3.ol v-6 This vehicle has coil on plug ignition system , not coil packs ! a coil per cylinder . If new coils an still has no spark , has no B+ voltage to the coil or the PCM isn't controlling them . Without testing i'd only be guessing as to the problem .If the repair shop you had it to can only say it had to be the coils , I'd find another shop to take it to !
Autolite Coil on Plug Ignition troubleshooting

1987 Pontiac Bonneville 3.8 liter V-6 VIN "3"

Identifying Ignition Types I and II

On Type I coil packs, three twin tower ignition coils are combined into a single coil pack unit.



On Type II coil packs, the coils can be replaced separately and the ignition wires are all on the same side of the coil pack.

With Type I Ignition



With Type II Ignition




Hope this helps.

check your distributor cap for a HAIR LINE CRACK this normaly is the problem as it expands when hot and shorts out replace the ROTAR ARM as well

1988 Oldsmobile Ninety-Eight 3.8 liter V-6 VIN "3"
Identifying Ignition Types I and II

On Type I coil packs, three twin tower ignition coils are combined into a single coil pack unit.



On Type II coil packs, the coils can be replaced separately and the ignition wires are all on the same side of the coil pack.

With Type I Ignition




With Type II Ignition



Hope helps.

The ignition module is under the coils. It is what the coils plug on to. To replace it removal all the coils and unplug it.

I had the same thing happen on a 91 Olds 88. Replaced crank shaft position sensor, coil, and ignition module. That solved the problem. I think the culprit was the CSP Sensor, but changed all three so can't say for sure.

have you changed the ignition wires? perhaps firing order crossed? if not coil pack or ignition wires faulty how do you know it is not "FIREING" on 1 & 4 have you tested it with a spark tester tool???

we get remans bad out of the box......... good luck