Won't start My jeep just died driving down road. It will turn over but not start. I have power to everthing but gauges. Battery is charged, gas tank is full. Turn key to accessorie position and it appears to do its normal startup diagnostic checks. There are no check engine or other alarms.

Personally, I think it could be a number of things.

First, as said before, the ignition module could cause this, but you also said that all the checks and stuff are coming on. This means it's still working somwhat; and still could be a source of the problem.

However, you said all the guages aren't working. These are mostly computer controlled and there isn't much you can do to narrow it down. I'd check all the main fuses in your fuse box starting with the ECU and Ignition fuses.

In the worst case scenario, you may have to just grudge down and haul it out to a mechanic. What I would personally do in this case (since the ECU is obviously still starting up with the pre-ignition checks). Find a mechanic that would bring their ODBII reader with them. If the mechanic has a decent model of reader they can do a test on the ECU itself and see if it's having a problem.

ECU's can go bad, but isn't very usual to see them die. It could just be a loose ground or bad wire somewhere also causing this headache. As I said before, it could be a headache coming from almost anywhere. But since it will not start, I'd check into the ignition module and ECU.

I hope this helps out. I know these car issues can be frustrating at times. But sometimes there are things that just have to be handled by a first person professional.

Dose it have spark? If not, the connector for the igniton could be loose or off completly. There has been a few problems with this connector. If you do have spark, I'ld need more info to diagnose.

You need a new ignition module this is the brain for your ignition

I recently had one of these in my repair shop and it would do this when the engine would get hot. I found out that the crank position sensor wasn't giving a signal to the computer causing this same problem. If it sits for a little it may start back up. It could also be another part called the auto shut-down relay. The relay runs fuel pump and also spark. The relay is located under the hood in with the other fuses on driver side. It is usually marked as ASD Relay. Hope this helps.