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Old 11-14-2018, 09:51 AM
kingdolan kingdolan is offline
230 Tornado
Join Date: Oct 21, 2016
Location: huntsville alabama
Posts: 7
No start,radio,turn lights,ect.. only head lampd and running lights work

1990 Jeep GW 360
This is a mystery to me. New battery full charge 12+ volts. Only the head lamps and running lights work, also tailgate works with key. Starter does not engage, not even a click. And nothing else seems to be working either from radio, wipers, turn lights, fan blower for heater nothing. I can crawl under jeep and make starter turn engine over with a screwdriver, but no spark to plugs or coil.
I just put the heater core back in after I removed it to replace the passenger side exhaust manifold, it had a hole the size of a tennis ball hid behind the heat shield, 2 broke bolts closest to firewall had to be drilled out.
Took it out for a test drive to check for leaks in heater core, I had already cranked it and warmed it up 40 minutes prior to test drive. drove about 7 miles or so and was stopping at supermarket any way. Just as I was pulling in parking lot it died and had to call a tow truck to get it home.

Could this be the ' Ignition Starter Relay ' gone bad? if so what is the best way to test/check it to know for sure?

Look forward to hear how easy a fix it is or not from the tech experts.
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Old 11-14-2018, 05:31 PM
Tripwire's Avatar
Tripwire Tripwire is offline
hey,does anyone here know how to.......
Join Date: Jul 30, 2000
Location: WA State
Posts: 4,647
check your fusable links near the battery
Abort? Retry? Ignore? >

86 GrandWag. Howell fuel Injected 360. MSD Ignition + Dizzy. 727/229 swap BJ's 2" Lift and 31's

88 Wrangler 4.2, Howell TBI and MSD - Borla Headers w/ Cat-back + winch and 31's AND a M416 trailer (-:
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Old 11-15-2018, 11:49 AM
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nograin nograin is offline
304 AMC
Join Date: Dec 19, 2000
Location: Philadelphia, Pa., USA
Posts: 2,142
If it dies on the way in then its not the starter relay or solenoid. IIRC 1990 has a chrysler type relay that in turn trips the Ford type starter solenoid.

Died while running is either going to be fuel or ignition. You'll have to look for clues. The suggestion to check for burned fusible link is reasonable. 1986 up had seperate link on each circuit. 1990 the links will be near that starter relay.

If you dont have a service manual, for a diagram go here;
Open and copy/print ignition schematic, and wiring diagram 8W-page 5 "starter system" for the fusible links.
The short wires labelled 10 then 18 gage Green or 14 gage Brown are fusible links.

Other possibilities.
Did it run out of fuel? Seriously. I've had the rubber hose connecting to the fuel pump go south. The pump is then sucking on air.
Things like that.
I like to narrow it down if there is nothing obvious. So I check for fuel in the bowl, and spark after a quick looksee for anything obvious. If both those check out, then pull spark plug looking for a clue. Just keeping it methodical and logical.
'85 Grand Wagoneer
360 727auto, NP229
body by beer (PO)
carries wood inside
no "wood" outside
My other car is a fish

Last edited by nograin : 11-15-2018 at 12:30 PM.
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Old 11-15-2018, 01:16 PM
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babywag babywag is offline
out of order
Join Date: Jun 08, 2005
Location: Land of froot loops and cukcoo-nuts, CA
Posts: 10,091
No crank and just a few things working screams fusible links.
Be sure to make sure no wires shorted to ground.
Common cause is harness falling onto exhaust manifold on the passenger side.
88 GW, 67 J3000, 07 Magnum SRT8
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Old 11-15-2018, 06:18 PM
Mass's Avatar
Mass Mass is offline
232 I6
Join Date: Sep 26, 2017
Location: Dallas
Posts: 87
Might also check your ignition switch on the steering column. Mine had a melted terminal and a burned contact so it would only engage the starter after a key cycling marathon. The other problem was no radio or cig lighter power 50% of the time. Both problems went away with a new ignition switch.
89' GW 6BT Cummins
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Old 11-17-2018, 07:18 PM
PBG928 PBG928 is offline
232 I6
Join Date: Jul 29, 2016
Location: Palm Beach Gardens, FL
Posts: 84
Check ground wire on drivers wheel well as this is main ground for most circuits. One black wire with ring terminal next to washer tank.
1990 Jeep Grand Wagoneer
1989 Jeep Grand Wagoneer(sold)
1987 Jeep Grand Wagoneer
1986 Jeep Grand Wagoneer
1985 Jeep Grand Wagoneer
1978 Jeep CJ-5 (sold)
1968 AM General M35 (Sold)
Palm Beach Gardens, FL
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Old 04-10-2019, 08:10 PM
kingdolan kingdolan is offline
230 Tornado
Join Date: Oct 21, 2016
Location: huntsville alabama
Posts: 7

First of all, I would like to say Thanks to who ever put this forum together and a special Thanks to all who posted suggestions on what to look for.

Turns out it was a fusible link. Well you can replace the fusible link or even use a but-connector to put it back together, but what needs to be done is to discover what caused the fusible link to fail.

I had a short in the wiring harness that runs across the whole length of the value cover on passenger side. Same side that had a base ball size hole in the exhaust manifold, which caused a small fire and melted the insulation on about half the wires. I cut out the ones that were damaged and soldered in anywhere from 6 to 12 inch pieces as needed or so I thought. But I missed one and that is the culprit that cause the fusible link to fail.

I start in to fix the bad wire when I had an after thought. I wanted to move the wiring harness off the top of engine and ended up redoing everything I did before. Now wires are off the top of engine and everything back together.

I cranked it up last night and boy oh boy did she sound good. Today I took it for drive to run some errands and she died on me, but was able to coast to a shady spot to look for clues. After being parked in the shade for some time, checked to see if there was spark to coil and plugs yes got spark. I did this cause she would turn over just fine but would not hit. She finally started and went straight home, about 4 miles. I will be looking for clues tomorrow and post what I find as time permits.
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Old 04-11-2019, 12:01 AM
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acct21 acct21 is offline
327 Rambler
Join Date: May 20, 2014
Location: Austin, TX
Posts: 727
THAT sounds like a bad ignition module. Random stalling, then restarts after some time -- is commonly a bad ICM.
1990 Grand Wagoneer with HD towing package -- everything works! (for now...)
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Old 04-11-2019, 08:04 AM
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babywag babywag is offline
out of order
Join Date: Jun 08, 2005
Location: Land of froot loops and cukcoo-nuts, CA
Posts: 10,091
Coils can do the same. If it stalls again check for spark immediately.
Feel the module, it should be warm but not untouchable hot.
If it's an aftermarket module most are poor quality and have a very high failure rate.
88 GW, 67 J3000, 07 Magnum SRT8
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Old 04-13-2019, 09:42 AM
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jpcoutts jpcoutts is offline
304 AMC
Join Date: Jun 28, 2002
Location: Hot Springs, Arkansas
Posts: 2,074
My first thing to do in similar situations is clean the battery terminal connections (posts) and all other connections in the starting/ignition circuit. It seems to be a constant need on nearly every FSJ (CJ's too!) I've ever had. All older Jeeps and other older vehicles I suppose have this issue.
Jim C
'67 J3000 Dually
'86 J20
'79 CJ5(in pieces)
'86 CJ7 Doesn't need anything(so why do I have it?)
Correction- it just needed a water pump!
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Old 04-19-2019, 07:30 PM
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67GMC 67GMC is offline
232 I6
Join Date: Mar 13, 2016
Location: Fort Erie, ON
Posts: 82
I'll vote for bad ignition module...
My Stable:
1984 Jeep Grand Wagoneer, 5.9L, 4x4, Auto (newest project)

1997 Volkswagen Cabrio, 2.0L, Manual
2005 Kia Sportage, 2.7L, Auto
2006 Toyota Sienna, 3.3L, Auto
2018 Toyota RAV4, 2.5L, Auto

Recent projects (no longer with us)
1987 Jeep Cherokee Laredo, 4.0L, 4X4, Auto
1967 GMC 910, 283V8, 4SPD (RIP)
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