Jump to content
Bullnose Forums

1986 Bronco (Mossberg)


gatof16

Recommended Posts

Meet my newest project, Mossberg. It's a 1986 Bronco 302 EFI AOD that I found in a field in central Oklahoma. It is covered in moss and fungus that is stained into the paint!! The previous owner said it had been sitting for 15 years. I'd say it housed about 20 critters during that time, two of which died in it. There were no keys and the steering wheel was locked 45 degrees off, so we decided to drill out the cylinder, which was a complete mess and ruined the collar. The fuel injection harness had been completely eaten, so I had to rebuild it. After replacing the collar shroud and installing the new key cylinder, I have been unable to get the engine to crank with the key.

If I jump the starter relay at the ignition post, it cranks. So I believe the relay is good. If I stick a continuity tester in the connector going to the neutral safety switch (NSS), the light comes on when I turn the key. If I jump the NSS connector, I do not get power up to the ignition post on the starter relay.

So my question is: does the R/Lt B wire that comes from the NSS and goes to the starter relay stop through anything? Is it a continuous wire? The wiring diagram seems to show it as a straight shot. Can't figure out why power isn't making it through. I'm afraid it might be chewed somewhere but I don't know how it's routed!

Thanks in advance for any help someone can provide!

Screenshot_20200907-195503_Facebook.jpg.061711ddc0d2ca5e17866a182ace46fb.jpg

Link to comment
Share on other sites

- deleted -

Here's a link to the '86 EVTM start and run wiring. http://www.garysgaragemahal.com/start--ignition.html

You'll see there's at least three connectors C121, C128 & C190.

I would look first at the clutch switch jumper (connector 190) up near the forward side of the fuse panel, since you have an automatic.

You can use a spare fuse as a makeshift jumper to test the rest of the wiring.

Note, that at the end of each EVTM chapter there are the pertinent troubleshooting steps laid out for you.

 

Link to comment
Share on other sites

Now that's a project! I've brought a couple home now that looked like this. Takes a full day of work with the shop vac and a full bottle of degreaser before they're even fit enough to get inside to even try to start...lol.

Yes, Cory, that is a PROJECT! It makes me tired just looking at it. (Or, maybe it is the 2nd Moderna shot that's making me tired?)

I'm curious, what part of central OK?

Link to comment
Share on other sites

Yes, Cory, that is a PROJECT! It makes me tired just looking at it. (Or, maybe it is the 2nd Moderna shot that's making me tired?)

I'm curious, what part of central OK?

Hey Gary! It was near the town of Drumright...I live in Owasso, btw.

Link to comment
Share on other sites

Hey Gary! It was near the town of Drumright...I live in Owasso, btw.

Drumright! Was there on Wednesday. Took Big Blue out to stretch his legs, and to get us out of the house.

How do you say Owasso? My friends from Haskell, that live just west of Collinsville, say Owasso, with the emphasis on the O.

Link to comment
Share on other sites

Here's a link to the '86 EVTM start and run wiring. http://www.garysgaragemahal.com/start--ignition.html

You'll see there's at least three connectors C121, C128 & C190.

I would look first at the clutch switch jumper (connector 190) up near the forward side of the fuse panel, since you have an automatic.

You can use a spare fuse as a makeshift jumper to test the rest of the wiring.

Note, that at the end of each EVTM chapter there are the pertinent troubleshooting steps laid out for you.

This info is perfect. Thanks Jim!

Link to comment
Share on other sites

×
×
  • Create New...