Calling all 3.0L Nissan Guru's

Submitted: Sunday, Jun 18, 2006 at 17:54
ThreadID: 35046 Views:1900 Replies:5 FollowUps:2
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Hi all,
Can anyone give some advice on what controls the length of time power is supplied to the glow plugs on a 3 litre patrol? Have been some work today on a possible hard starting problem and have discovered that there seems to be power at the glow plug connector after the engine has started.
Have tested the relay and it checks out OK. Can anyone point me in the right direction?

Cheers,
bob
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Reply By: Peter 2 - Sunday, Jun 18, 2006 at 18:59

Sunday, Jun 18, 2006 at 18:59
Depending on ambient temp and engine temp the glowplugs could remain on for a period after the engine has started.
No exact knowledge of the 3 litre nissan but most other diesels will cycle the glowplugs after starting if required.
Peter
1996 Oka Motorhome

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AnswerID: 179096

Follow Up By: Flash - Sunday, Jun 18, 2006 at 21:00

Sunday, Jun 18, 2006 at 21:00
Yes, concur on that. Every diesel I've seen with auto glowplugs will keep power to them for a while after starting if it's cold.... but likewise no specific knowledge on the 3 litre.
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Reply By: Member - Jeff M (WA) - Sunday, Jun 18, 2006 at 21:22

Sunday, Jun 18, 2006 at 21:22
Yeah even the agricultral old rocky used to cycle them on at off after start. You could here the relay's clicking in and out and seem the headlights dim !LOL
AnswerID: 179124

Follow Up By: cokeaddict - Monday, Jun 19, 2006 at 14:12

Monday, Jun 19, 2006 at 14:12
Yep....my GQ 4.2 does that for about 1 minute, can hear the relay clicking and watch the head lights go dull. Quite normal.

Ange.
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Reply By: Member - Bob K (QLD) - Monday, Jun 19, 2006 at 07:29

Monday, Jun 19, 2006 at 07:29
Thanks fellas. I wasn't sure only the Gregory's says the power should only be on for a short period. Whatever a short period is.

thanks for the help
bob
AnswerID: 179143

Reply By: chump_boy - Monday, Jun 19, 2006 at 10:05

Monday, Jun 19, 2006 at 10:05
Arrrhhhhh...

Is that that clicking sound that comes from my glovebox every now and then? I assumed thats wheat it was, but was never quite sure.

Thanks guys,

Chump
AnswerID: 179164

Reply By: Member - Hugh (WA) - Tuesday, Jun 20, 2006 at 12:07

Tuesday, Jun 20, 2006 at 12:07
Hi Bob,

The Glow relay remains on until coolant temp is more than approx 75C and will remain off (for restarts) until coolant temp drops below approx 55C.

If you send me a member message with fax # I'll send you extract from the workshop manual for diagnostic procedure for the glow control system.

Regards,
Hugh
AnswerID: 179440

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