My 93 V6 Dakota died on the hwy. I have it back at my house but it will not start. The starter cranks, but I have no spark or Fuel. The fuel pump and auto stop relays are good. There is 12 volts at both relay contacts and 12v at the high side of both relay coils with the key on; however there is no ground on the low side of either relay coils. I can jump the low side to ground and both relays will close and the fuel pump works, but it still won`t start. Anyone have any ideas?

Thanks

 

Crank position sensor has been a problem for me, same symptom.

 

you check the codes?

https://dodgeforum.com/forum/general-tech/8717-service-engine-codes-for-obd-engines.html

 

I hae checked the codes. It flashes a 3 followed by 5 5. I haven`t fount a code for 3. 55 is suppose to be end of code. Any ideas?

 

Well that 3 could actually be a 1 and a 2, which means the battery was disconnect in the last few key turns. Unfortunately that doesn't help much.

Could also be a 21 which would be 02 sensor, though i really don't see how this could cause a problem. When mine died it started, just had a very rough idle.

I would also think this is a crank pos. sensor (theres been a lot of that going around here) but I couldn't say for sure.

 

Im in the crank position sensor group. But could also be a wire short.

 

Got back to my Dakota today. I removed the distributor and discovered the carbon contact for the coil post gone. Installed a new distributor and rotar, it fired right up ran for a minute then died. It restarted and I let it idle for 10 min, thinking the problem fixed I sut it down . 2 hours later I deceided to drive around the pasture. It started right up, then died. I started it again and drove about 300 feet when it died again. This time it would not restart. Back to no fuel and no spark. I removed the new distributor and found the carbon contact for the coil broken off. Replaced the cap again, but no joy. Still no fuel and no spark. I double checked the latest dist and am sure that it is ok. I guess I will chect the crank sensor. Is there a way to test it? Also does anyone know what size socket it takes to remove the bolts? So far I haven`t found one that fits and I can not see them to see what they are.

Thanks

Joe

 

I'm not sure how different yours would be, but mine was hex when i replaced it. I think it was 1/4" hex but im not entirely sure.

 

can anybody tell me where to find the crank sensor? I need real detailed map cuz my manual is usless...thanx

 

Crank sensor is located at back of engine on passenger side. It has two hex capscrews that bolt to engine and then sensor drops down through small opening into bell housing of tranny.