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Old 05-24-2019, 06:10 AM
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aaronsjeep aaronsjeep is offline
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Join Date: Feb 19, 2009
Location: Pittsburgh Pennsylvania
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401 Swap- Starter Relay to remote starter solenoid conversion

Hello IFSJA family.

It
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1987 GW 5.3, 4l60e NP241c

1988 GW 5.3, 4l60e, NP229

1990 GW 6.6, 727, NP229
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Old 05-24-2019, 08:06 AM
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aaronsjeep aaronsjeep is offline
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Hello IFSJA family. (lets try this again first post got cut off for some reason.)

It's been a while since I posted, good to see that the community is alive and well.

I need your help!

The patient:1990 Grand Wagoneer now with 76 Jeep 401 mated to the 1990's 727. Has TFI conversion (installed prior to the engine swap)

Coming to the completion of a 401 swap into a 1990 GW. The 401 is almost ready to fire. I had to update... or should I say backdate the starter to the original large ford style starter with the remote solenoid.

I am trying to figure out how to wire the remote solenoid and if I need to retain the 90's original starter relay.

Couple of questions I hope someone can help with:

1.The 90's starter relay has a terminal labeled "F" I believe this is for the fuel pump ballast resistor? Not sure what it does. Don't think this can be wired to the solenoid? Do I leave it wired to the old relay? Or is there a better way to give this the power/signal it needs?

2. The 90's starter relay has a ground wire/terminal. The remote solenoid grounds through the mounting bracket. Does this mean I can eliminate the original ground wire or should I ground this wire to the body?

3. I guess the main question is has anyone done this? Switch from the Mitsubishi starter to the earlier motorcraft style? And if so how did you wire it?

Thanks for your help in advance. I will post up some pics soon. Thanks Aaron
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1987 GW 5.3, 4l60e NP241c

1988 GW 5.3, 4l60e, NP229

1990 GW 6.6, 727, NP229
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  #3  
Old 05-24-2019, 08:51 AM
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babywag babywag is offline
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Location: Land of froot loops and cukcoo-nuts, CA
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If adding a ford style solenoid, just use the light green wire on the existing relay to activate it.

Or look @ oljeep.com wiring diagrams, and redo wiring if removing the 90 relay.
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'88 GW (aka Babywag) and '90 GW (aka JUNKbucket) both fuel injected
1994 Caprice wagon
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Old 05-24-2019, 12:29 PM
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aaronsjeep aaronsjeep is offline
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Join Date: Feb 19, 2009
Location: Pittsburgh Pennsylvania
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Thanks baby wag,

Thankfully oljeep is NOT pay to play as I would be broke.

The light green on this one is the solenoid wire that runs from the old (now gone) relay to the solenoid on the old starter so it is no longer in use.

From what I can tell chasing the other wires back... one is the keyed ignition, one is power to the coil and the other is for backup lights. I've got that one hooked to NSS on the new solenoid. I have the keyed ignition wire to the S terminal (which is a GRN wire.) and the last wire (GRN with White tracer) which I believe should send power to the coil at startup I have tried both connect to the "I" terminal and disconnected. Seems to make no difference as the coil has power either way.

Good news is it's turning over now with the key. And has spark... still no joy for starting...

I tried the distributor both ways. Going recheck all my plug wires now. This things been apart for almost 2 years so definitely could have wires crossed.
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1987 GW 5.3, 4l60e NP241c

1988 GW 5.3, 4l60e, NP229

1990 GW 6.6, 727, NP229
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  #5  
Old 05-25-2019, 08:20 PM
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aaronsjeep aaronsjeep is offline
232 I6
 
Join Date: Feb 19, 2009
Location: Pittsburgh Pennsylvania
Posts: 68
Solved!

On the starter relay... The wire on the “I” terminal will go to the “S” post on the remote solenoid.

The wire on the “G” terminal on the relay will go to the NSS terminal on the solenoid.

The wire on the “F” terminal on the relay will go onto the “I” post on the solenoid. This wire supplies power to the coil while cranking.

Hopefully that helps someone down the road!

No to find a fan shroud!!!
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1987 GW 5.3, 4l60e NP241c

1988 GW 5.3, 4l60e, NP229

1990 GW 6.6, 727, NP229
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