Attention all Glowplug guru's

Submitted: Tuesday, Jun 08, 2004 at 22:26
ThreadID: 13606 Views:1432 Replies:3 FollowUps:4
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When i turn my ignition to on position my glowplugs go on and off 5 times before they stop.... Which is good on cold mornings because i catch the start on about the third time round but is this normal and what am i damaging if not.... Sometimes the vehicle starts and i can still hear the cycle another 3 times with the engine already firing>>>>?.........
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Reply By: Davoe - Tuesday, Jun 08, 2004 at 22:49

Tuesday, Jun 08, 2004 at 22:49
on 2h equiped cruisers there is a fairly expensive control module that controls the glow plugs mine is disabled with a manuel glow plug button. I think excessive glow plug operation is not good for battery life as I have been told it is nearly as taxing as a total short
AnswerID: 62364

Follow Up By: V8troopie - Wednesday, Jun 09, 2004 at 00:31

Wednesday, Jun 09, 2004 at 00:31
Davoe, its about a 60 amp draw on the 2H motor.
They have a two stage timer, one time period to turn off the little light on the dash to tell you its OK to start now and another, temperature dependent, time after this to turn the plugs off. Mine never playred up while that motor was under the bonnet.

Regarding the pulsing glow plugs, there must be something funny with the timer or, perhaps, a connection to it to cause that. With a correct time set and a good battery the motor should fire in less than one revolution of cranking.
If that's not happening one or more of the glow plugs might be dead. To check them one first has to undo the busbar that connects all of them together. Then measure with a multimeter or test lamp, good ones are like a short circuit, bad oned are open circuit. My second hand troopie had 5 bad glow plugs when I bought it, replacing all of them fixed any cold starting problems.
Klaus
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FollowupID: 323691

Follow Up By: Davoe - Wednesday, Jun 09, 2004 at 09:39

Wednesday, Jun 09, 2004 at 09:39
Thanks for the info v8 my problem stemmed after I had the head replaced and "mysteriosly" my glow plug control relay my engine control module and my edic motor all gave up the ghost together. as I was booked in for 6 weeks and 14,000k of exploreoz I went anyway just was hard to start when cold and couldnt be turned off - many $$$ at the sparkys upon my return grrrrrrrrrr
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FollowupID: 323708

Reply By: baza - Wednesday, Jun 09, 2004 at 09:20

Wednesday, Jun 09, 2004 at 09:20
I have an old 2.4 hilux, a symptom of a failed plug (on my model anyway) is the relay switching on and off about 5 or 10 times when the ignitoin is turned on.
AnswerID: 62386

Reply By: Member - Jeff M (WA) - Wednesday, Jun 09, 2004 at 15:32

Wednesday, Jun 09, 2004 at 15:32
My rocky used to pulse the relays on and off if the motor was going or not for about 30 seconds. The Light only ever came on one for a few seconds and then went of though. But you could still here the relays even after it was started.
AnswerID: 62423

Follow Up By: Member - Alan - Wednesday, Jun 09, 2004 at 17:08

Wednesday, Jun 09, 2004 at 17:08
For the record my Rocky does the same thing - on very cold mornings or if I drained the battery a bit over night (left the engel on) I let it pulse a few times before starting - usually fires up straight away.
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FollowupID: 323735

Follow Up By: Member - Jeff M (WA) - Wednesday, Jun 09, 2004 at 17:14

Wednesday, Jun 09, 2004 at 17:14
Rockys have kick ass batterys eh!
Can't beat an N100!! :-)
They are awsome beasts!
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FollowupID: 323738

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