View Full Version : No spark - 93 dakota - no power to coil


the shaolin
04-20-2008, 05:06 PM
91993 Dodge Dakota, 3.9L V6

Won't start. Added gas, tried starting on ether. Nothing. Pulled a spark plug.

No spark.I don't think it's getting fuel either, plugs are dry. Changed cap and rotor, as well as rotor pick up plate.

Had coil tested. It's good. Still nothing.

Checked the codes and came up with a 42...Automatic shutdown relay circuit open or shorted. Also showing 33 - AC clutch relay open or shorted.

Swapped ASD relay with other ones, they click when you try and start it, so that's fine.

Tried testing power to the coil, and NADA. Neither contact has any voltage.

Tried looking for corroded wires and everything looks okay. I'm wondering if it's the crankshaft position sensor? What are the symptoms of a bad crank sensor?

dodgerules86
04-20-2008, 06:37 PM
Please go to the following link and follow the basic troubleshooting.
http://www.dodgeforum.com/m_1280773/tm.htm

Believe me, I had a similar situation. Truck wouldn't start, no spark coming from coil. Coil tested good, and there was voltage going to it (although slightly less than the minimum allowed by the service manual). I had earlier that day bought a new battery ($90) and decided to go ahead and replace the coil ($36). Didn't solve anything, still no spark coming from the new coil as well. $130 down the drain.
In the end, it was the timing chain. Which, when you follow the steps in the above link, will tell you if it is good or bad.

the shaolin
04-20-2008, 07:31 PM
Thanks for your help.

There is definitely no voltage going to the coil...we even stripped the wire by the PCM and checked it coming out of the PCM.

The distributer does spin.

I'm going to pull the CKS right now (is that held in by allan bolts?!) and have it checked...and then I guess I'll try replacing the PCM.