After taking pictures of all the linkage I looked back under the dash and found this. It looks like a magnedic switch. Activated when a pieces of metal is placed beside it. If you look at where the arrows are pointing you can see some buildup of what im guessing is metal dust attaching it self to where the magnetic switch is. I am unable to view the backside of this switch because the steering column is in the way.
You can idle the engine until the shut down alarm is activated then watch as you push on the clutch pedal. You must be 100% sure otherwise you can cause damage to electrical components. You will need to be able to disconnect the connector to perform a simple test and to connect the relay.
I believe i can get to the back of the switch if i pull the gauge cluster out. It will have to wait till morning or until i move my truck to another parking area in the next 2 hours(Walmart police). Im eating dinner and would hate to have to put it all back together when i might be just about done with it. I pickup my load at 1300 tomorrow so i should have time in the morning.
If you give me a day or two I will work on finding the most suitable part then you can order from graingers. It will also require a little bit of wiring to make it work but I can help you with that. If you need to you can pm me.
This one will work for you, Omron H3CR-F8DC12 It can be set to cycle On for 1.2 seconds and OFF for 4 minutes. It will continute this cycle for as long as power is applied. Don't order it until you get the switch figured out.
Well i tested it to see if it was magnetic at the 4min 30sec timer and yes it is and yes it reset the timer. I pulled my gauge cluster out but that didn't help at all there is a steel pipe about 2" round in the way along with all the wires running through the dash. I am unable to get to the switch but i was able to see the wires coming out of it. There are 4 of them all black. Seance it seams getting to that is not going to happen i have been playing with the brake peddle to see if it will keep resetting the timer and so far it has. So instead lets look at installing the relay on the brake.
You are a fast learner! The brake switch will work the same but keep in mind there may be 2 switches, 1 for the ECM (5volts) and one for brake lights(12volts). As long as you find the correct circuit you will be ok. Is the cruise working ok? Sometimes they disconnect the wire to keep from idling.
Cruise in this truck has 3 settings on(idles at600RPMs), idle up(idles at 800RPMs), and max idle(idles at 900RPMs). None of these settings allow the truck to idle for more than 5 minuets unless the temps are below 30 degrees or above 90 degrees. Edit: Im sure I know where the brake light switch is as I have a creeper and am under my truck all the time.
