1989 diesel cut out

Submitted: Tuesday, Jun 28, 2005 at 13:56

ThreadID: 24258 Views:3781 Replies:12 FollowUps:8

This Thread has been Archived

carson

Hi all ,im new and i wanted to congratulate everybody on an interesting in infomative site ,if i could id like to pick a few brains .I have a 1989 diesel landcruiser 2h it seems to have an intermittent problem which seems to go away for days on end but then returns without notice ,i did notice in the archives bbuz had what seems to be the very same problem .The engine never cuts out it just seems like it loses fuel for a fraction of a second there is the characteristic click from around the fuse box area ,so replaced the small ciccuit breaker at a price of 46 dollars [rip off] everything seemed fine but it has since returned ,i have also replaced the fuel cut off module in the bottom right corner footwell to no avail .The one thing i did notice is if i turn the heater on that is when the engine starts to play up so this is where i replaced the circuit breaker .It is making me think there is a short somewhere on the heater system which is somehow affecting the voltage and affacting the engine in some way .Your help from all you knowledgable ladies and gents would be greatly appreciated .

Back Expand Un-Read 0 Moderator Share

Reply By: Member - Bill S (NSW) - Tuesday, Jun 28, 2005 at 15:02

Tuesday, Jun 28, 2005 at 15:02

Hi, There is a possability that you have a faulty fuel shut off valve situated at the injector pump ie weak fields in solanoid. Just a thought

AnswerID: 117914

Follow Up By: kev.h - Tuesday, Jun 28, 2005 at 18:13

Tuesday, Jun 28, 2005 at 18:13

I'd agree I chased the same problem and mine was a combination of weak fuel cut off and low volage output from the alternator-only had the problem with the lights on even worse on high beam whenever i backed off and let the engine slow to idle it ran like it was busted-cut in and out like a miss in a petrol engine after new alternator no more problems
Its not always obvious took my auto lekky a couple of goes
regards Kev

FollowupID: 373202

Reply By: carson - Tuesday, Jun 28, 2005 at 15:17

Tuesday, Jun 28, 2005 at 15:17

thanks bill ill take a look at that it just seems wierd it never does it when the heater is swithced off

AnswerID: 117918

Reply By: Member - DOZER- Tuesday, Jun 28, 2005 at 18:02

Tuesday, Jun 28, 2005 at 18:02

Does this happen on cold start...if so, it is the oil pressure timer shutting down the motor and then the pressure coming up...and alowing the motor to continue on.
Andrew

AnswerID: 117929

Reply By: carson - Tuesday, Jun 28, 2005 at 18:44

Tuesday, Jun 28, 2005 at 18:44

thanks for all your replies ,it is the fuel cut relay at the drivers side footwell that is clicking i have two of those there just incase there seems to be no fault with these as i said it just seems to do it when the heater is on .If it is afaulty oil switch if i disconected that just for diagnosis sake would that isolate the problem to the switch ,the only thing that makes me think it isnt that is because it does it hot or cold

AnswerID: 117942

Reply By: carson - Tuesday, Jun 28, 2005 at 18:47

Tuesday, Jun 28, 2005 at 18:47

the thing i forgot to say was when the fault appears it throws the EDIC arm forward to shut the fuel off .thanks all carson

AnswerID: 117943

Reply By: carson - Tuesday, Jun 28, 2005 at 19:54

Tuesday, Jun 28, 2005 at 19:54

im leaning more to your way of thinking kev ,it does do when the lights are on but not as bad as when the heater is on .The altenator seems to pump out what i think is a respectable 14.3 volts at the battery when nothing is on at tickover of 685 revs but when the heater is on and the headlamps are on full beam with a couple of spotties on the go to it drops to 12.9 at tickover i wouldnt exactly know wether this is low or not . thank all

AnswerID: 117951

Follow Up By: kev.h - Wednesday, Jun 29, 2005 at 19:03

Wednesday, Jun 29, 2005 at 19:03

voltage seems ok mine was barely 13 at full tilt also my battery was only half charge due to alternator problem
Kev

FollowupID: 373300

Reply By: Stew53 - Tuesday, Jun 28, 2005 at 21:45

Tuesday, Jun 28, 2005 at 21:45

I had a similar problem with my 60 series it turned out to be an earth wire that attached to the rear of the engine on the intake manifold ( this is from 16 years ago so I could be a bit out) it was the earth wire for the afterglow and edici t had become old and brittle from the heat of the engine and glow plugs it caused a bad earth the relay requires power and an earth to hold the glow plugs off after the engine has run for a few seconds.
Took me ages to get to the bottom of that one the car would go for days and weeks then just cut out for a second then kick back in usualy going around a corner at high speed, scary stuff.
stew

AnswerID: 117973

Reply By: carson - Tuesday, Jun 28, 2005 at 21:55

Tuesday, Jun 28, 2005 at 21:55

thanks stew im at my wits end with this one i will give that one a look ,ive checked the continuity onthe earth leads i can find and theall seem ok .thank all

AnswerID: 117975

Follow Up By: Member - Duncs - Tuesday, Jun 28, 2005 at 23:29

Tuesday, Jun 28, 2005 at 23:29

Carson,

My GQ stopped on me and would not go. Turned out to be the fuel shut off solenoid. Power and earth to the solenoid were fine the fault was a broken wire inside the solenoid itself. A new solenoid solved the problem but hurt the bank balance.

Good luck
Duncs

FollowupID: 373234

Follow Up By: Member - Davoe (Widgiemooltha) - Wednesday, Jun 29, 2005 at 22:15

Wednesday, Jun 29, 2005 at 22:15

duncs 2h es are real motors there is no fuel cut off solenoid but an elelectric motor that operates a rod that shuts off fuel. My edic motor and fuel control modulebleepe itself but i was still able to drive it half way round oz. If your 2h wont run it is easy to rip off the rod and no worrys away you go

FollowupID: 373331

Reply By: carson - Wednesday, Jun 29, 2005 at 00:23

Wednesday, Jun 29, 2005 at 00:23

thanks dunc i wouldnt even know if the 2h diesel has a fuel shut off solenoid on the pump .It has a fuel module inside on the drivers side footwell but i have two there one as spare .it runs fine untill the lights are on and the heater is going and is not to bad on tick over it seems to kick in at about 1400-1500 revs .thanks all

AnswerID: 117996

Follow Up By: kev.h - Wednesday, Jun 29, 2005 at 19:07

Wednesday, Jun 29, 2005 at 19:07

fuel shut off is on side of injector pump it will have one or two wires coming from it all diesels have them its the only to stop them (ie. shut off the fuel)
Kev

FollowupID: 373302

Follow Up By: Member - Davoe (Widgiemooltha) - Wednesday, Jun 29, 2005 at 22:19

Wednesday, Jun 29, 2005 at 22:19

kev.h see reply above not all diesal have them 2h fuel shut off is done mechanbically by a remote electric motor called an edic motor. I cant fully answer your q carson other than it sounds like your module is getting bs signals. If it is too bad as a short term the rod from the edic to fuel pump pops of easily and your motor will run fine but you will have to put it in 4th and stall it with your foót on the brake to stop the motor

FollowupID: 373333

Follow Up By: kev.h - Thursday, Jun 30, 2005 at 19:03

Thursday, Jun 30, 2005 at 19:03

Hi Davoe
Well you learn something new every day, all the diesels i've had anything to do with seemed to have one (limited exp.),sorry i did not get what you meant when you mentioned edic in post
i went to so much trouble trying to sort my problem out all for a faulty solinoid i thought it was worth a try
not the first time i've been wrong ,guess it wont be the last
sorry guys
Kev

FollowupID: 373464

Reply By: greenant - Wednesday, Jun 29, 2005 at 10:31

Wednesday, Jun 29, 2005 at 10:31

Carson
Try this site it has a good forum for cruiser problems www.cruizers.com

Greenant

AnswerID: 118022

Reply By: carson - Wednesday, Jun 29, 2005 at 23:02

Wednesday, Jun 29, 2005 at 23:02

thanks all for all your terrifc information ,unfotunately i am no closer to solving the problem .As a short term fix i like the idea of taking the edic arm off ,do you think it would be feasable to fabricate something so i could push the arm from the drivers seat and would this be a good idea in the long term ,because if this would be a simpler and more reliable way of stoping the engine im all for it .Or does the edic arm in its self serve a specific purpose

AnswerID: 118158

Follow Up By: Member - Davoe (Widgiemooltha) - Thursday, Jun 30, 2005 at 00:13

Thursday, Jun 30, 2005 at 00:13

edic arm does do overfuel for starting but you wont really notice with the arm removed it will sit in the n ormal run position. Tie a thin bit of rope to the arm the edic motor atac´hes to and run it forward to the bit of metal that holds the bonnet release catch hook it under one of the metal gaps and then back under the bonnet then out and tie it too your rearvisionmirror, pull on it and it moves the armforward stopping the motor. ( It should be noted I did this until itbleepme off so much i went to stalling it before payining way too much getting the electricals fixed)

FollowupID: 373343