Engine warning lights Flashing

Submitted: Tuesday, Mar 02, 2010 at 17:50
ThreadID: 76489 Views:1965 Replies:10 FollowUps:6
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My HJ80 Diesel has a habit of the engine warning lights flashing on occasionally. All of them together. ( The ones under the speedo and taco). I am not overly concerned as there are no computers to crap themselves, however I was wondering if anyone has experiences this problem. They were also flashing on when I transmit on the UHF.

The vehicle is fitted with Dual Battery system although I have no idea how its wired up. There appears to be a couple of solenoids that CLUNK on when the key is turned on.

Thanks Wayne B
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Reply By: get outmore - Tuesday, Mar 02, 2010 at 17:56

Tuesday, Mar 02, 2010 at 17:56
in rainor water crossigs etc?

all the lights coming on is usually a sighn youve lost your belts or there slipping after a water crossing
AnswerID: 406914

Reply By: Malleerv - Tuesday, Mar 02, 2010 at 17:58

Tuesday, Mar 02, 2010 at 17:58
Alternator on its way out, probably just sticky brushes.
If you take the drive belt off and run the engine the lights stay on also.
Maybe have the alternator looked at if you don't want it to hold you up.
Also don't get caught thinking it's just the alternator playing up when the lights stay on as it may have thrown a belt.

Cheers Matt
AnswerID: 406915

Follow Up By: Member - George (WA) - Tuesday, Mar 02, 2010 at 18:11

Tuesday, Mar 02, 2010 at 18:11
I had the same problem in my 80 series L/C. Agree totally with Malleerv above.
Get your alternator serviced asap before your batteries run down completely. Cheers
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Reply By: Time - Tuesday, Mar 02, 2010 at 18:09

Tuesday, Mar 02, 2010 at 18:09
Alternator - remove the plug and give it a good clean with a wire brush, if you have been through mud/muddy water then it maybe that simple. Else, as above the alternator might be on the way out. Have a look at the Landcruiser site here
AnswerID: 406918

Follow Up By: Member - Wayne B (NSW) - Tuesday, Mar 02, 2010 at 18:37

Tuesday, Mar 02, 2010 at 18:37
Thanks for that I looked at the site and will check those things.
Cheers
Wayne B
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FollowupID: 676735

Reply By: Member - Wayne B (NSW) - Tuesday, Mar 02, 2010 at 18:25

Tuesday, Mar 02, 2010 at 18:25
Yes all the lights flash on occasionally. T/Belt. Alt. Fuel Filter, Some exhaust thingie. Dose not have to be raining but appears to happen more frequently at night. So could be alternator although voltage is around 14.2 and the gauge dose not drop below that.
AnswerID: 406920

Reply By: disco driver - Tuesday, Mar 02, 2010 at 19:07

Tuesday, Mar 02, 2010 at 19:07
As a Landrover fanatic, I don't claim to know much about Toyota's but electrix is electrix.
It sounds like it could be an earthing problem somewhere, instrument panel to body, body to chassis, chassis to batteries or a combination of all the above.
FWIW thats where I'd start looking.

Disco.
AnswerID: 406925

Follow Up By: Member - Wayne B (NSW) - Tuesday, Mar 02, 2010 at 19:14

Tuesday, Mar 02, 2010 at 19:14
Discos and the "Three Amegoes" ABS, Hill Decent and whats the other one??
Having those lights come on is part of the adventure of owning a Disco. :-)
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FollowupID: 676746

Follow Up By: disco driver - Tuesday, Mar 02, 2010 at 20:55

Tuesday, Mar 02, 2010 at 20:55
Sorry Wayne,
Her's is an auto, only have two lights that go haywire (M&S)
They should be the other way round (S&M) coz that's what it feels like sorting them out.

Mine is too old ('81 Series 3 trayback) for all that electrickery, only has 3 fuses, and DEFINITELY no computer controlled stuff.

Disco.

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FollowupID: 676768

Reply By: Fab72 - Tuesday, Mar 02, 2010 at 19:51

Tuesday, Mar 02, 2010 at 19:51
Poor earth.....somewhere. Not uncommon on these, but it's been 15 years since I last worked on HJ80's. Be buggered if I can remember where the poor earth was. Maybe someone else might know.
AnswerID: 406933

Reply By: Outnabout.. - Tuesday, Mar 02, 2010 at 22:07

Tuesday, Mar 02, 2010 at 22:07
The turbo diesels were notorious for this but bthe fix is simple if it is the same problem on the normally aspirated motor.

remove the wire plug connector of the back of the alternator, spray liberal doses of electrical contact cleaner and then refit after putting some electrical grease on the terminals.

The turbo diesels have this problem and the symptons are flasing lights as you have.
Sometimes the check lights don't illuminate when ignition is turned on but before the engine is started.
Sometimes they will flash on decelleration or under load.

I usually clean mine every service.as it is only a 5 minute job.
AnswerID: 406974

Follow Up By: Member - Wayne B (NSW) - Tuesday, Mar 02, 2010 at 22:43

Tuesday, Mar 02, 2010 at 22:43
Thank you, I will do that as soon as I get home on Friday.
Cheers
Wayne B
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FollowupID: 676795

Reply By: Honky - Wednesday, Mar 03, 2010 at 09:49

Wednesday, Mar 03, 2010 at 09:49
Is the speedo broken?

Honky
AnswerID: 407029

Follow Up By: Member - Wayne B (NSW) - Wednesday, Mar 03, 2010 at 11:05

Wednesday, Mar 03, 2010 at 11:05
No it is fine
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FollowupID: 676869

Reply By: Wherehegon - Wednesday, Mar 03, 2010 at 13:57

Wednesday, Mar 03, 2010 at 13:57
My old hilx use to do that all the time when ever I dunked the front end in water (river crossings etc) it was a single wire that ran from the alternator into a connection, I got rid of the connection (hard soldered) and never had any issue again but this was only with water, maybe yours just has some grime on the connection, but if this connection is ok and yours is doing at any time then I aggree with above that your alternator is due for a rebuid. My'n use to flash up with a whole heap of lights including the water trap light for the fuel filter........Regards Steve
AnswerID: 407085

Reply By: Member - Wayne B (NSW) - Friday, Mar 12, 2010 at 23:13

Friday, Mar 12, 2010 at 23:13
Thanks for your help
Cleaned the plug at back of alternator. PROBLEM SOLVED

Cheers
Wayne B
AnswerID: 408631

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