Truck won't start {4.7} fuel gage shows empty - but full.

its your crank sensor, its burned out and causing a 5 volt reference down at the pcm, and since your pcm and your BUS communication center interact with each other this is the reason nothing is working because with the crank sensor shot the engine isnt able to find top dead center and bottom dead center therefore its just inhibiting the engine from starting. i hope this helps

Thanks for responding Dan. I've replaced the crank sensor - the obd reading confirmed that - unfortunately it still has the no bus reading & won't start. Any other suggestions? We're thinking possibly the pcm ? Where is the bus comm center located . Thanks

well before you replace the PCM try resetting it, simply remove you negative wire on the battery put the key in the ignition and hold it in the start position for like 15-20 seconds turn the key all the way off and reconnect every thing, if that doesnt fix the problem then replace the PCM unfourtunately haviing never done the job on a dakota i dont know where the PCM is located

i also do not know the location of the bus center on the vehicle either

Ended up being the PCM - it wasn't sending the 5 volts to the crankshaft sensor unit. Found one at the junkyard for $80 & back on the road. FYI- both PCM & Bus center are on the passenger wheel well. Dan - Thanks for Your help

would all this be the same on a dakota with a 5.9l v8 cause im having the same problems?

Me too same issues changed sensors still notta

Also check the ground wire coming from the bus. Mine was loose and causing the same problems.

Hablas español

I have same issue

I have a 2001 Dodge Dakota with a 4.7l and it spins over but won't start last time I drove it it broke down on me and mad a clicking noise then the motor shut off.

Where is this ground wire located on 1, 2, or 3 on the pcm cause there are 3 terminals