electrics in cab going crazy, truck not getting spark at all help!!!!!!

85'royal · Jan 29, 2015

I have a 1985 dodge d150 with a 318 5.2l v8, I recently helped out a buddy by jumping his car, as soon as he turned the key in his car my truck shut off, I went to start it and my truck would only turn over getting no spark, and if I touch anything electrical all the lights on the dash go crazy and all light up and my electric locks don't want to go down without a push, iv replaced the ballast resistor and the coil brand new plugs wires and distributer cap and rotor, still no spark, I'm getting a ground to the ecu and the start relay on the distributor is fine, the battery and starter are fine, what could be causing these problems please help!!

crazzywolfie · Jan 29, 2015

do you got a test light or multi meter? best thing to do is put the key in the run position and see what fuses get power. knowing what fuses are getting power and what ones are not getting power should be able to help you track down the problem

85'royal · Jan 29, 2015

This sounds like it would fix the problem in the cab but what about spark?? I'm thinking ecu but I don't wanna get a new one unless I have to

crazzywolfie · Jan 29, 2015

well if your not getting power to all your fuses with the key in the run position it is possible that ecu is not getting power.

85'royal · Jan 29, 2015

Tryed fuses it all checks out clean, followed Hanes Manuel still no dice, Is there a way to bypass or test ecu?? That's the only thing I can think of at this point

crazzywolfie · Jan 29, 2015

so there is power at all the fuses? no way to really bypass or test the ecu. you can remove both wire from the ballast resister and 1 of them should have full battery voltage with the key in the run position.

85'royal · Jan 31, 2015

I just replaced thw ICU it hasn't changed anything I'm at a dead end idk what it could be

crazzywolfie · Jan 31, 2015

did you test for voltage at the ballast resister wires?

85'royal · Feb 2, 2015

Getting spark there I just got spark tonight but my spark is weak and not enough to light the fuel, any ideas as to why?

crazzywolfie · Feb 2, 2015

did you check what the voltage was going to the ballast resister? if full power is not making it there it could result in a weak spark. could also be a weak or dying coil or maybe the pickup in the distributor is out of adjustment.

85'royal · Feb 3, 2015

I replaced the resistor and it checks out to spec, brand new coil, distributer cap and rotor, plugs and wires I think the pick up might be it, that's the only thing I havnt checked or replaced.

85'royal · Feb 3, 2015

Voltage Is Good New resister And Coil, ICU, Wires plugs And distributer Cap And rotor I Don't No What Else It Could be

randocommando · Feb 8, 2015

same issue with my 1980 w150

I'm only getting 8 to 9 volts at the balast resistior and from the ign relay and to to the coil could it be a corroded ign relay ? i have 12v from the battery sometimes it turns over other times i get no power to anything I'm kinda stuck on what to do

electrics in cab going crazy, truck not getting spark at all help!!!!!!

85'royal

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