Looking for help. My 03 3500 will not shut off. Remove the key, keeps running.
Dash gauges are still hot. A few weeks ago, when turning off and removing key there was a delayed reaction of about 5 seconds then the engine would shut down.
Now it does not shut off at all. Anyone with ideas as too why?
To shut it down I put the truck in 5th gear and held the brake and stalled it.
I do not want to do that again. The problem is not the the fuel shutoff valve.
I tore apart the ignition last night and found out it is not the source of the problem.,
Something else is keeping the ECU/PCM live. I would have thought the ignition was the only way to put energy into the ECU. I need a fail safe way to shut down the truck.
Does any one know where is a good place to tap into the the ECU power?
Here is what I know so far.
1. I have the TST by-passed.
2. I have battery grounds disconnected.
3. I have the ignition connector unplugged. (in steering column).
4. If I connect the battery ground, every thing becomes live same as if key switch in "run" position.
See post in 3rd Generation Power Train::search.. "Electrical Glitch" for solved problem.
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