intermittent starter or ignition issue?, where to look next? Options

[DRPHIL914]

So this issue has happened 3x now in the past few months, and now today after driving 300 miles up to Brevard, NC on the way , stopped to get gas, going to start it, no crank. all other electronics work, fuel pump priming just no starter engagement. it’s happened cold too, i can get it to start by push start.. so about an hour ago i pulled the steering wheel and replaced the plastic switch still no starter , i also checked the yellow wires under passenger seat (seat buzzer by-pass) , i don’t think that’s the issue.

I bought and installed a new Bosch starter about 6 months ago and installed it on this newer motor a few months back, so now i am wondering if it’s a bad solenoid? wond not crank . the last time it happened was a months ago, push start got me home from the store, and when i got home and pulled into the garage after turning it off it started right back up and has for the next 10 times —- until tonight.

what are the other possibilities? does the power go from the ignition switch to the relay board and then to the starter? i have done a few searches , but looking for someone that’s maybe had this issue or understands the whole schematic better . i don’t have a multimeter with me but i can get one tomorrow at O’Reilly’s and i might see if they can get a starter., i’m just guessing and grasping at straws ..

- oh, for those that don’t know it’s a ‘75 2056 d-jet.

Phil

[76-914]

So this issue has happened 3x now in the past few months, and now today after driving 300 miles up to Brevard, NC on the way , stopped to get gas, going to start it, no crank. all other electronics work, fuel pump priming just no starter engagement. it’s happened cold too, i can get it to start by push start.. so about an hour ago i pulled the steering wheel and replaced the plastic switch still no starter , i also checked the yellow wires under passenger seat (seat buzzer by-pass) , i don’t think that’s the issue.

I bought and installed a new Bosch starter about 6 months ago and installed it on this newer motor a few months back, so now i am wondering if it’s a bad solenoid? wond not crank . the last time it happened was a months ago, push start got me home from the store, and when i got home and pulled into the garage after turning it off it started right back up and has for the next 10 times —- until tonight.

what are the other possibilities? does the power go from the ignition switch to the relay board and then to the starter? i have done a few searches , but looking for someone that’s maybe had this issue or understands the whole schematic better . i don’t have a multimeter with me but i can get one tomorrow at O’Reilly’s and i might see if they can get a starter., i’m just guessing and grasping at straws ..

- oh, for those that don’t know it’s a ‘75 2056 d-jet.

Phil

Check the female spade-yellow wire- on the solenoid for good contact next time. That was a problem on my 76. When you turn the key to the start position does your amp gauge drop? Do you hear any clicks when turning the key? (IMG:style_emoticons/default/beerchug.gif)

[DRPHIL914]

So this issue has happened 3x now in the past few months, and now today after driving 300 miles up to Brevard, NC on the way , stopped to get gas, going to start it, no crank. all other electronics work, fuel pump priming just no starter engagement. it’s happened cold too, i can get it to start by push start.. so about an hour ago i pulled the steering wheel and replaced the plastic switch still no starter , i also checked the yellow wires under passenger seat (seat buzzer by-pass) , i don’t think that’s the issue.

I bought and installed a new Bosch starter about 6 months ago and installed it on this newer motor a few months back, so now i am wondering if it’s a bad solenoid? wond not crank . the last time it happened was a months ago, push start got me home from the store, and when i got home and pulled into the garage after turning it off it started right back up and has for the next 10 times —- until tonight.

what are the other possibilities? does the power go from the ignition switch to the relay board and then to the starter? i have done a few searches , but looking for someone that’s maybe had this issue or understands the whole schematic better . i don’t have a multimeter with me but i can get one tomorrow at O’Reilly’s and i might see if they can get a starter., i’m just guessing and grasping at straws ..

- oh, for those that don’t know it’s a ‘75 2056 d-jet.

Phil

Check the female spade-yellow wire- on the solenoid for good contact next time. That was a problem on my 76. When you turn the key to the start position does your amp gauge drop? Do you hear any clicks when turning the key? (IMG:style_emoticons/default/beerchug.gif)

i will recheck the yellow spade connector.
when turning the key to the first position everything powers up, when turning to start position you can tell there is a dimming , i didn’t look at the volt meter seems there is current flow , as i turns the key all the way also the fuel pump is priming so there is some kind of signal being sent, it’s getting to the ecu ans FI just not the starter, not sure if i’m hearing any click.