I have a 04 with a 4.3. I redid the heads because of over heating, after putting everything back together I had no spark. I have power to the coil, coil module and the distributor. I did replace the distributor assembly less than a year ago. All grounds are connected to the heads and block and I do have power from the ignition.

Any ideas of what I need to check next? I did check all fuses and they are good

 

Did you remove the distributor? If yes, did you get it back in correctly? It is hard to imagine the fuel not working unless the plug to the injectors is not in properly.

Maybe someone else has some other ideas.

Keep us posted.

 

Do you have spark from the coil output before the distributor? If not, first check power on the pink wires to the coil and ICM and the ground to the ICM on blk/wht. If those are good then we need to check the timing pulses from the PCM to the ICM. Has the crank sensor been disturbed?

George