[fredkingdecatur]

Hello I had codes that said the coil pack was bad. Replaced and still have the same codes. It has the 4.0 will start and run rough for about 5 seconds and die.

 

[warriorsuspensions]

You should have also have had a code for misfire. 3001 - 3006?

 

[xdopplerx]

Welcome! There should be some good videos on testing the coil pack.

 

[fredkingdecatur]

Welcome! There should be some good videos on testing the coil pack.

OK thanks

 

[fredkingdecatur]

You should have also have had a code for misfire. 3001 - 3006?

No sir

 

[warriorsuspensions]

Try this. Pull your battery cables for about 30 seconds and tough them together. This will set the ECM. The computer may need to reset itself. Beware these Jeep computers are kink of stupid and slow to learn