No spark to coil
Asked by beat51 Aug 07, 2015 at 05:28 PM about the Dodge RAM Van
Question type: Maintenance & Repair
I have no spark or power anywhere beyond the PCM. Have replaced PCM, ASD relay,
battery, crank sensor. cam sensor, fuel pump and the coil itself. Still have no spark. I am
pulling my hair out after 2 months of hunting. Can you help. Have a 2002 Ram 1500 van
w/ 5.2L
5 Answers
I think I may have suggested testing for compression on your older post. If you have zero power to any other components such as windows, radio, gauges, etc, you may also have a bad BCM or body control module.
Albea_1033 answered 7 years ago
Solved my problem on 94 Dodge B3500. Van would crank but no run. No spark to distributor, replaced coil, checked PCM & ECU & TCU & BCM & TCM & ASD all of which controls ignition spark. Finally checked all the fuses (box & in-line) and connections since a 94 van has many splices all to no avail. And then I spotted a dangling wire with a cap on the end way back behind & under the alternator on the front of the engine. Very hard to see and get to. Plugged it in and it started. Bingo. A 4 day adventure had ended.
I M A MITSUBISHI DELTA VAN 2010 CRANK BUT NO SPARK NO FIRE
Look for the Auto shut down relay in the engine compartment near the steering column. Bosh style relay. This supplies power to the coil and the fuel injection.
if at anytime you have removed the thermostat housing there are small wires that run behind it that may have been damaged and cut off power to the coil.
