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Falcon ed 4.0 Sudden non start...not so uncommon 

 

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 Post subject: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Mon Jan 04, 2021 3:09 pm 
Parts Gopher
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Ride: Ford Falcon ED 1994 SW

Location: sydney
NSW, Australia

New year new problems...

All worked well till 2 days go.
Since then there has been a lot of heavy rain.... just adding this detail for the more analytically minded diagnosers.

1 Today I started the car and it started very well, drove 2 m and then it went dead. Motor stopped
2 Turned the engine and it started spattering on and off but no start
3 turned a second time and it did the same
4 third time and there was no spatter. It just cranked with no ignition.
5 Checked fuel pressure....seems very good because as I undid the clip it started spitting out. Turned
the key and fuel flowed quite well. (no pressure measurement taken)
6 Took spark plug out and inserted screwdriver. Turned engine and spark was good.
7 removed fuel line and pumped 1/2 l of fuel into a bottle to see if there was water. None noticed
8 as i removed the fuel line from the rail some fuel came out of the rail. Nothing abnormal there BUT
I got wife to turn engine and it started spattering and almost started
9 reinserted fuel line and it only cranked

Fuel qty is low but no lamp turns on.

My analysis is that the ignition coil is ok
Did not test injectors as it is almost impossible they all fail at once. However the fact that it started spattering when there was NO fuel pressure is a worry.
The Distributor and module and plugs and leads were replaced with original Bosch only 3000 kms ago
The fuel pump seems to work.
Hopefully one of the more experienced members can help me out
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Mon Jan 04, 2021 6:32 pm 
Fordmods Junkie
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Ride: '03 BA & '06 BF Wagooons

Location: Geeelong
VIC, Australia

seeing as it's been raining heavy ......... have you checked the passenger 'A' pillar base for water?. some 'may have' leaked in & run into/onto ecu.
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Mon Jan 04, 2021 6:51 pm 
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Mad2 wrote:
seeing as it's been raining heavy ......... have you checked the passenger 'A' pillar base for water?. some 'may have' leaked in & run into/onto ecu.


I never messed with the ECU...so much so I have no idea where it is. Will check the left internal passenger panel. Good call. Hope I have not fried the ECU :cry:

The fact that the car started firing when the fuel hose (and therefore fuel pressure) was disconnected. totally baffles me
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Mon Jan 04, 2021 9:20 pm 
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brik32544 wrote:
I never messed with the ECU...so much so I have no idea where it is. Will check the left internal passenger panel. Good call. Hope I have not fried the ECU :cry:


fingers crossed it's not that.


brik32544 wrote:
The fact that the car started firing when the fuel hose (and therefore fuel pressure) was disconnected. totally baffles me



no idea on that one. but if it starts & runs on start ya bastard etc it 'maybe' fuel related.
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Wed Jan 06, 2021 1:00 pm 
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Ride: Ford Falcon ED 1994 SW

Location: sydney
NSW, Australia

After yesterday's washout I did some more checks. Was curious about the possibility of bad fuel, but that is not the issue.
Then I looked for the ECU. It seems well hidden. There is a side kick panel on the passenger side. Is that what I need to remove?

Then, I checked what I had prematurely excluded as a problem, The injectors! Sure enough there is no flashing when I connect a noid light.... is this another clue that points to wards a fried ECU? :roll:

PS this Ford has the smartlock which has never caused me problems but through the years I read of many owners that had smartlock problems.....any hints?
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Wed Jan 06, 2021 6:50 pm 
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Ride: Ford Falcon ED 1994 SW

Location: sydney
NSW, Australia

I found and removed the ECU. It was as dry as it should be . No water or visible condensation

I then removed the BCU which controls the smartlock and can block injectors. Tried to add photos but it seems this website lacks space or does not want to encourage photo uploads. No evident marks on the board.

Image
Photo of ECU board...looks as good as new

Image
Photo of BCU front

Image
Photo of BCU back. Note a few dust spots concentrated on a couple or resistors near connector.


I will clean it with compressed air and refit it but something tells me I am back to square one

A local mechanic said that water dropping from windscr4een on the BCU is common in tropical Australia. I carefully looked over the cases of both boards and there is not one small sign of water. Just very still dry dust from many years of sitting there.

Any way to fault find one of these boards?
Note that I have a spark and I have fuel, I just don't have a signal at the injectors

Back to you experts...
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Wed Jan 06, 2021 9:08 pm 
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if you still have it out & loose ........ check for dry solder joints.


also did you check the connectors at the top of the ecu?
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Wed Jan 06, 2021 11:58 pm 
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Mad2 wrote:
if you still have it out & loose ........ check for dry solder joints.

I certainly did. Tomorrow I will connect it without the box and gently move some relays and components on the board

Mad2 wrote:
also did you check the connectors at the top of the ecu?

Yes and sprayed it with WD

NEW INFO

The motor turned but did not start, however, I then changed the gear from N to P and back to N and the engine started firing but did not start. This brought back to memory an event 3 weeks ago when the engine would not turn. Moved the gears back and forth and it returned to normal.

As I replaced the BCU which is orange/red I noticed another board in a blue box nearby attached to the centre console in a b**ch of a place to reach. What is that?
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Thu Jan 07, 2021 12:28 am 
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brik32544 wrote:
Mad2 wrote:
if you still have it out & loose ........ check for dry solder joints.

I certainly did. Tomorrow I will connect it without the box and gently move some relays and components on the board

Mad2 wrote:
also did you check the connectors at the top of the ecu?

Yes and sprayed it with WD

NEW INFO

The motor turned but did not start, however, I then changed the gear from N to P and back to N and the engine started firing but did not start. This brought back to memory an event 3 weeks ago when the engine would not turn. Moved the gears back and forth and it returned to normal.

As I replaced the BCU which is orange/red I noticed another board in a blue box nearby attached to the centre console in a b**ch of a place to reach. What is that?



got a pic?
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Thu Jan 07, 2021 10:17 am 
Parts Gopher
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Ride: Ford Falcon ED 1994 SW

Location: sydney
NSW, Australia

I did some research and Ford ED and EB have a YELLOw or RED BOX which has the following code:
9330065108



FALCON / FAIRMONT EB Red / Yellow Smart Lock 9330065108
FALCON / FAIRMONT ED Red / Yellow Smart Lock 9330065108

this is the SMARTLOCK MODULE .. NOT the BEM Body Electronics module.

It seems that if the smartlock light comes on and then goes off without blinking, the smartlock module is working. Is this right?

So the other blue box must be the BEM

FALCON / FAIRMONT ED Blue - BCM 9330065059
FALCON / FAIRMONT ED Green - BCM 9330065060

Note how FORD installed 2 models (green or blue) in the same car.
Mine should be 9330065059. Will check
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Fri Jan 08, 2021 1:07 pm 
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Ride: Ford Falcon ED 1994 SW

Location: sydney
NSW, Australia

It seems I had a faulty NOID light! So it may not be an electronic problem.


1) There is a signal at each injector. First when you tuen the ignition to ON and then when you click it to start

2) There is plenty of fuel at the rail. Measured at 70PSI

3) each cylinder sparks

4) the engine fires when the PUMP hose is removed! ONLY when the pump hose is removed for a couple of seconds as the fuel in the rail depleats

BACKGROUND
The car started fine a few days ago. Travelled 30 m and it stopped . Restarted and it started sputtering and then engine stopped firing
There was lots of rain in the 2 days prior.

I think I'll have to post this on a new thread :roll:
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Wed Apr 26, 2023 4:35 pm 
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Ride: EBII & XG VAN

Location: BEECHWORTH
VIC, Australia

Hey brik,
Did anything come of this? I know this is an old thread but I think I may be experiencing the same or something similar in my EBII.
Have replaced coil, dizzy, sparks, fuel filter and pump and have recently just cleaned and refurbed injectors.
Experiencing what might be the same as you. I spent a long time trying to get the car started, turned out I’d fit the dizzy on the wrong timing. Fixed it and car fired and started - was a rough idle though. Then wouldn’t start at all when warm. I flushed the fuel line with carby cleaner and found I could get it to consistently start on that from the rail. That was about a fortnight ago and I am now finding after that I can’t get the car to start at all again. I thought the issue was fuel related but have flushed the fuel and still no go.

interesting that in both cases the car would start when the fuel line was disconnected from the rail.
Unlikely I’ll get a reply, but worth a shot. I’ll start looking into the ecu. Anyone on this forum from the north east of vic with a spare ecu floating around I could borrow to swap?

 

 

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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Wed Apr 26, 2023 6:19 pm 
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 Post subject: Re: Falcon ed 4.0 Sudden non start...not so uncommon
Posted: Sun May 07, 2023 3:09 pm 
Parts Gopher
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Joined: 21st Mar 2011

Ride: Ford Falcon ED 1994 SW

Location: sydney
NSW, Australia

Had to think for half hour to remember what the solution was. I remember the problems though.

My problem was a bad connection to the distributor module. One of the wires was not connecting properly. As soon as I resoldered all the connections it started first time. Don't assume that just because a connector snaps into place it has good connections!

Sputtering is not a problem with the smartlock module. Your ebay ad is as bad as they get. The price is ridiculous and their claim that MOST PARTS ARE TESTED....well if you believe that.... Just look at how the dismantler(to be very polite ) removed the unit. Cut the wires! Only a no hope/clue "dismantler" would do that. Sounds like you played with timing....and the sputtering could well be related.
Wish I could help...
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