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'86 5.0 EFI Manual No-Start Issue

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ctubutis

Re: '86 5.0 EFI Manual No-Start Issue

If it were me, I would have swapped out the computer a long time ago.

85lebaront2

Re: '86 5.0 EFI Manual No-Start Issue

Administrator

I can look at my stuff and see if I still have a spare 1986 5.0L box, it will be from an AOD truck W/4WD, but shouldn't be an issue.

Bill AKA "LOBO" Profile

"Getting old is inevitable, growing up is optional" Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator Wife's 2011 Flex Limited Daily Driver 2009 Flex Limited with factory tow package Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413

ctubutis

Re: '86 5.0 EFI Manual No-Start Issue

I have one from a 1993 3.0L SHO, I for some reason don't think it'd work too well for this. ;)

fords4life

Re: '86 5.0 EFI Manual No-Start Issue

In reply to this post by ctubutis

I considered it, but didn't want to throw parts at it either. Breakout box will be here tomorrow so now I just have to wait for the next rain so I can do some more diagnostics. I also picked up a noid light so I can check to see if the injectors are firing or not.

1986 F-150 SC 2wd 4spd 302EFI Base Model all OEM motor/trans/emissions equipment.

Gary Lewis

Re: '86 5.0 EFI Manual No-Start Issue

Administrator

Noid light. That was a new term to me, so I Googled it. Turns out Amazon has a one. But, does Ford port-injection use the Bosch injectors?

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

fords4life

Re: '86 5.0 EFI Manual No-Start Issue

It was new to me as well. They make them for Ford injectors as well. The one I purchased is listed for "most" EEC-IV TBI systems. I figured for $10 it was worth a shot. I have not tried it yet.

https://www.ebay.com/itm/232863452031

1986 F-150 SC 2wd 4spd 302EFI Base Model all OEM motor/trans/emissions equipment.

reamer

Re: '86 5.0 EFI Manual No-Start Issue

In reply to this post by fords4life

check for gas in the engine oil, Ripped diaphragm in fuel pressure regulator and "do" this.
ripped "d" can lead to pumps running, yet low pressure to the rail and most getting back to the tank via return line, but some ends up in the oil via cylinders leaking.

1986 F-150 Flareside 4x4, 351, 4-v, ZF5 speed. AC, Cruise, Tilt, Slider, Digital clock, Radio, Lariat seat, Pwr doors/locks

reamer

Re: '86 5.0 EFI Manual No-Start Issue

I too have a Noid light, Had it fro years.... Fun to watch the harness Blink...

1986 F-150 Flareside 4x4, 351, 4-v, ZF5 speed. AC, Cruise, Tilt, Slider, Digital clock, Radio, Lariat seat, Pwr doors/locks

85lebaront2

Re: '86 5.0 EFI Manual No-Start Issue

Administrator

In reply to this post by fords4life

Here is what Chris has of mine, at this price I would almost buy a second one:

https://www.ebay.com/itm/Rotunda-007-00047-Ford-EEC-IV-Monitor-/392056218534?oid=232863452031

FWIW, Ford injectors probably are Bosch, they do use the Bosch connector as do Chrysler's older ones.

Bill AKA "LOBO" Profile

fords4life

Re: '86 5.0 EFI Manual No-Start Issue

In reply to this post by reamer

reamer wrote

check for gas in the engine oil, Ripped diaphragm in fuel pressure regulator and "do" this.
ripped "d" can lead to pumps running, yet low pressure to the rail and most getting back to the tank via return line, but some ends up in the oil via cylinders leaking.

This should be a consistent issue though right? Not dependent on rain/moisture.

1986 F-150 SC 2wd 4spd 302EFI Base Model all OEM motor/trans/emissions equipment.

fords4life

Re: '86 5.0 EFI Manual No-Start Issue

In reply to this post by 85lebaront2

Thanks.

Go figure, after the breakout box gets here the rain stops. So.... We wait. I might try to take some rain this weekend, but we'll see.

1986 F-150 SC 2wd 4spd 302EFI Base Model all OEM motor/trans/emissions equipment.

Gary Lewis

Re: '86 5.0 EFI Manual No-Start Issue

Administrator

Yes, gas in the oil should not have anything to do with rain.

Maybe you can "make" rain by spraying the truck?

Gary, AKA "Gary fellow": Profile

vjsimone

Re: '86 5.0 EFI Manual No-Start Issue

There is always this on your wiring harness and outside of your connectors ; https://www.amazon.com/Performix-Clear-Liquid-Tape-Spray/dp/B006ZBCQNC

Vinny... "Do All Scheduled Maintenance Prior To Troubleshooting" "Resolve All Known Issues Prior To Troubleshooting"

fords4life

Re: '86 5.0 EFI Manual No-Start Issue

In reply to this post by fords4life

Sorry I never closed out this issue. I never could find a specific cause. Then I replaced the windshield and the issue has never returned. Water leak around the windshield was the apparent cause of the no start.

1986 F-150 SC 2wd 4spd 302EFI Base Model all OEM motor/trans/emissions equipment.

Gary Lewis

Re: '86 5.0 EFI Manual No-Start Issue

Administrator

That's bizarre! I'll take a fix any way I can get it, but.....

Gary, AKA "Gary fellow": Profile

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