Hello and welcome to Just answer.com, Super mechanic here. About your vehicle.
Before you replace the coil again. I found a campaign on it. Let me see if I can copy it for you.
High ignition coil operating temperatures, combined with high ambient temperatures, can result in coil failure and cause poor engine performance, hard starting or a no start condition. To correct this condition, the coil must be replaced with a low resistance coil and an external resistor harness.
Details of this service action are explained in the following sections.
Service Procedure Videotape
No videotape of the service procedure for this notification will be provided.
Each involved dealer, to whom vehicles in the notification were invoiced (or the current dealer at the same street address), will receive enough Ignition Coil Packages, PN C3905840, to service 25% of those vehicles (minimum of 5 and maximum of 20 packages).
Each uninvolved dealer, will receive 5 parts packages to service vehicles upon request.
Each parts package contains the following components:
Owner Notification and Service Scheduling
All involved vehicle owners known to Chrysler are being notified of the service requirement by first class mail. They are requested to schedule appointments for the service with their dealers at the earliest possible date. A copy of the owner notification letter is included.
Enclosed with each owner notification is an Owner Notification Form. The involved vehicle and notification are identified on the form for owner or dealer reference as needed.
With the ignition key in the OFF position, disconnect the negative battery cable.
Note: The terminal locking tab must be depressed using a paper clip or small screwdriver (from the terminal end) while pulling back on the wire.
Some things are better to get from the manufacturer. That may be one of them.
I noticed that Autozone offers both kinds but you never know if they are the uupdated ones. That may be why your going through them so often.