Hello, trying to fix this thing. This was a project truck that I bought from a used truck dealer. The truck was only getting 10.9 miles to the gallon originally after the work I have done on it I was up to 13. My truck was running perfect, one flick of the key and it would fire no problem. One day I was driving about 45 mph barely touching pedal cruising and the engine died.. I had no power..Not sure what was wrong. I had replaced the distributor cap rotor spark plugs wires about 6 months ago. When the truck died I did the key dance it through 2 evap codes and the ignition coil side a code. I replace the ignition coil, I replaced the camshaft position sensor, I have replaced the crankshaft position sensor. I have no blown fuses , I can hear the fuel pump, I have sprayed starter fluid directly into the throttle body when cranking. It has new pulleys new belt the battery is good new alternator new water pump new radiator new coolant new hoses new heater core. The truck doesn't leak a drop of fluid anywhere has new transmission fluid and filter and Gasket, new oil and filter, and the rear Pumpkin was serviced by me also, plus all new front end parts obviously unrelated. I did have a hard time with the headlights shutting off which I traced to be in the steering column there were certain burnt wires that led into the terminal that goes to the turn signal assembly I have repaired those and the headlights work fine. One thing that the truck has always done since I owned it but never made it not start is when I go to unlock the truck with the key fob the security system will sometimes go off. I figured that possibly the security system could be killing the power to the motor and not allowing me to start the truck. I tried to do a security system reset by holding down the odometer for 4 seconds turning the key to on while keeping the odometer held down for four more seconds which made the truck scan and all of the gauges went to Max and went back down which still did not solve the problem. all of the grounds that I can find seem to be tight and not loose. When the truck died I did the key dance to see what codes it would read as stated earlier and I did not have any code reading no bus which I think would be a code for ECM failure. Even my dash is in great shape haha. Any help would be greatly appreciated.

 

Holding the odometer down does not reset the security system. You need to start with that is missing spark or fuel. My guess would be the crank sensor failed and you must likely got one from the big chain stores, whereas these trucks only like Mopar sensors or SMP I had luck with.

First thing is first see what you are missing spark or fuel. Since you said you sprayed starter fluid I would guess spark.

 

check your batteries and the integrety of the cables , recharge the battery if needed