Changing glow plugs... NEK MINNET

[Winnie]

Hi all, changed the glow plugs on my TD42 GQ and now she no go. I have power right across the rail, what else should I test? Oh I blew the fuse for the glow plugs too so gotta find one somewhere!

If you're happy and you know it tap a post!

[Sir Roofy]

Check your earth

[Winnie]

Where?

If you're happy and you know it tap a post!

[nissannewby]

They earth through the head. Your power supply sounds like you have a dead short if its blowing fuses. Are the glow plugs the same as what came out?

[Winnie]

Blowing the fuse was my stupid fault. New plugs have a small plastic ring on the top, smaller thread held on with a little 7mm nut. I took them off after it didn't work and I think it shorted them. Turned ignition on and smoke came out of the fuse holder. This is old compared to new look the same to me but different brands. http://www.nissanpatrol.com.au/forums/images/imported/2013/05/87.jpg

If you're happy and you know it tap a post!

[threedogs]

Did you disconnect battery to work on your 4x4 ???

[nissannewby]

So it doesn't glow or won't start?

[Winnie]

No 3D I unplugged the glow rail though and Yes I plugged it back in haha.
Mat it won't start so I'm assuming it's not glowing? They were definitely the problem in the first place. This is what was smoking, think it's a fuse anyway?

If you're happy and you know it tap a post!

[threedogs]

Nah I was thinking dirty battery terminal,
That thing in your hand looks home made???
Fusable link maybe???

[Winnie]

Nah it turns over and I had power across the glow rail.

If you're happy and you know it tap a post!

[nissannewby]

Yeah that's a fusible link. You will need to replace that first. It's looks simple but they can be sensitive and any voltage drop across it won't be helping you at all.

So you had power to the rail before you ruined the fuse, have fixed the short and now it won't glow? See if your other wagon has one and swap it out. Clean all your plugs even scratching the connectors to clean em up a bit and see how you go.

[Yendor]

Do you have an alarm or shut down timer fitted?

I think that fuse is the wrong type for your vehicle but if you were getting power to the glow plug rail this can't be your problem.

With the ignition on, use your test light and check the fuses in the fuse box inside the vehicle.

[nissannewby]

The plastic ring goes under the rail to stop it shorting.

[Winnie]

Yeah that's a fusible link. You will need to replace that first. It's looks simple but they can be sensitive and any voltage drop across it won't be helping you at all.

So you had power to the rail before you ruined the fuse, have fixed the short and now it won't glow? See if your other wagon has one and swap it out. Clean all your plugs even scratching the connectors to clean em up a bit and see how you go.

Yep that's right, but there is no power to the rail anymore after I ruined the fuse. I'll check my other one but being petrol it won't have one?? So should I take the little 7mm bolt off the top of the plugs that is on top of the plastic rings?

If you're happy and you know it tap a post!

[Winnie]

Do you have an alarm or shut down timer fitted?

I think that fuse is the wrong type for your vehicle but if you were getting power to the glow plug rail this can't be your problem.

With the ignition on, use your test light and check the fuses in the fuse box inside the vehicle.

Thats the fuse that was in there and always worked before? Which fuses inside should I check?

If you're happy and you know it tap a post!

[nissannewby]

Yep that's right, but there is no power to the rail anymore after I ruined the fuse. I'll check my other one but being petrol it won't have one?? So should I take the little 7mm bolt off the top of the plugs that is on top of the plastic rings?

If you're happy and you know it tap a post!

Your other one should have one.

The glow plugs should have the plastic ring then the small nut to hold it on then glow rail and the the nut to hold the rail on.

[Yendor]

Thats the fuse that was in there and always worked before? Which fuses inside should I check?

If you're happy and you know it tap a post!

After reading your previous post, don't worry about checking the fuses inside.

Fit the insulators and replace the fuse.

[Winnie]

Your other one should have one.

The glow plugs should have the plastic ring then the small nut to hold it on then glow rail and the the nut to hold the rail on.

Yeah that's how I had it? Didn't work. Before I touched anything if I glowed the plugs about 5 times it would start, not now. That's when I took the plastic rings off and blew the fuse.
The glow light still comes on in the dash and the timer still works too.

If you're happy and you know it tap a post!

[nissannewby]

Sounds like a dodgy connection somewhere. When everything was working did you check you were getting full battery voltage at the rail befor you blew the fuse.

[Clunk]

Whoopsie.....

[Winnie]

Sounds like a dodgy connection somewhere. When everything was working did you check you were getting full battery voltage at the rail befor you blew the fuse.

Nah I don't have a multimeter just a test light so all I can say is it was getting at least 6V. Just checked my other patrol and it has a different size fuse there for the rad fan.

If you're happy and you know it tap a post!

[nissannewby]

Get one. They are cheap.

[Winnie]

I am waiting for the one I want to go on dead stock list at work so it will be cheap hahaha

If you're happy and you know it tap a post!

[Winnie]

The glow fuse and other connections are full of a paste type stuff?

Last weekend my battery died, jump started and gave it a good drive. 5 minutes later it was flat, I thought battery was dead so swapped it and was fine after that. Went to drive it the week after and plugs were dead.

If you're happy and you know it tap a post!

[Yendor]

Yeah that's how I had it? Didn't work. Before I touched anything if I glowed the plugs about 5 times it would start, not now. That's when I took the plastic rings off and blew the fuse.
The glow light still comes on in the dash and the timer still works too.

If you're happy and you know it tap a post!

Check the fuses inside now. There should be one marked IP. Check all of then.......turn the ignition on and make sure you have power on both sides of the fuses.

[Winnie]

Hey Rodney, can confirm that I have power on both sides of every fuse inside.

If you're happy and you know it tap a post!

[Yendor]

You will need to check you are getting power to the solenoid at the the injector pump....with ignition on.

If you don't have an alarm or shut down timer fitted you should be getting power there but you will need to check.

Have you refitted the insulators and replaced the glow plug fuse?

How's your battery now? is it still turning the engine over fast enough while cranking?

[Winnie]

I am missing two of the insulators now so will need to get some on Monday... same deal with the fuse I will have to get that on Monday too.

[taslucas]

Stick to petrol?

.......very helpful i know:)

[Bloodyaussie]

So what you are saying Winnie is your car is sitting there like a big huge brick......???

HHmmm chook pen, maybe a home for cats...... bed sit for uni student maybe, after all it has a fridge!!!!

[Winnie]

That's okay I have a spare.

[Yendor]

I think you might have more then just a problem with your glow plugs.

Possibly a fuel supply problem......maybe a faulty solenoid on the injector pump???

Get the glow plugs working first and see how it starts.

[Winnie]

Thing is though I started it with aerostart once and it still runs beautifully. Should I put some wire from the battery to the glow relay for a few seconds and try that?

If you're happy and you know it tap a post!

[Yendor]

Thing is though I started it with aerostart once and it still runs beautifully. Should I put some wire from the battery to the glow relay for a few seconds and try that?

If you're happy and you know it tap a post!

No......not if you haven't got the insulators fitted to the glow plugs.

If you do have the insulators fitted you can get some wire and temporary touch it on the positive battery post and the glow plug rail.....carefully, this wire will get hot.

Then try and start it.

[Winnie]

Yep I'll do that when I get the insulators on the plugs. Would you know if you can buy those seperately or will I have to buy 2 new plugs?

[Yendor]

Don't know sorry. You can use anything as long as it's not conductive such as a fibre washer.

[Bloodyaussie]

Dont confuse him Rodney..... this is a guy that thinks there is only one type of beer???

[Winnie]

There's only one GOOD type of beer.
Thanks Rodney I'll make something if I have to.

[Yendor]

It will be better if you can get the original ones if possible. See how you go.

[Winnie]

Bursons had the insulators but dear for what they are.... 6 bucks! Better than buying new plugs I guess.

Got a fusible link coming from Patrolapart, could not find them anywhere else from local wreckers or even nissan themselves.

[threedogs]

Cool hopefully the GQ will be up and running again soon.
Is your battery on charge while you're waiting ??

[Alitis007]

Bursons had the insulators but dear for what they are.... 6 bucks! Better than buying new plugs I guess.

Got a fusible link coming from Patrolapart, could not find them anywhere else from local wreckers or even nissan themselves.

Just go to an auto elec and buy the fusible link wire and retrofit it into the holder??

[Winnie]

Just go to an auto elec and buy the fusible link wire and retrofit it into the holder??

Doesnt matter now, got one coming from Patrolapart. Cheaper than one glow plug isolator!

[Alitis007]

You might get it for free plus it wont hurt to keep an assortment of fuses, fusible links, terminals and bulbs in the glove box " just in case"

[nissannewby]

Doesnt matter now, got one coming from Patrolapart. Cheaper than one glow plug isolator!

Maybe you should have got a pack of 10 :p

[Clunk]

Should have stuck to petty Pooh lol

They call me MCcrappatappalot!!!!!

[Winnie]

Blasphemy!

[Winnie]

Just put isolators back on and used a wire to go from the battery to the glow rail.... nothing. I still have not replaced the fusible link yet as it's still on its way. Read this on another forum "glow and fuel shut off solenoid run off the same fuse" is that true? So if I don't have that fuse then it won't start at all?

[Yendor]

That's not the main fusible link they are talking about that's the fuse in the fuse box inside the vehicle I asked you to check.

It's the 15 amp fuse on the left hand side five down from the top. With ignition on does this fuse have power on both sides?

Have you checked for power at the solenoid on the injector pump?

You do have plenty of diesel in the fuel tank?

[nissannewby]

What have you done Winnie......

[Clunk]

What have you done Winnie......

He's gone an broken it............. obviously never heard the term " if it isn't broke, don't fix it!!!" Lol

MCCrappatappalot signing in!!!

[Winnie]

That's not the main fusible link they are talking about that's the fuse in the fuse box inside the vehicle I asked you to check.

It's the 15 amp fuse on the left hand side five down from the top. With ignition on does this fuse have power on both sides?

Have you checked for power at the solenoid on the injector pump?

You do have plenty of diesel in the fuel tank?

Okay, yes that fuse has power on both sides. Got a full tank of diesel but I haven't checked for power at the solenoid?

[Alitis007]

Do you have power going in and out ofthe glow plug relay??

[my third 256]

now i know why they didn't let you work on healeys gu

[Winnie]

I will check this tomorrow.

Where abouts on the vehicle is the cutoff solenoid and how do I test it?

[Alitis007]

I'm guessing it would be around the injector pump mate if your talking bout the fuel cut off solenoid, most likely you would test it for 12v at the plug. Theres not too many wires on a diesel so you should be able to find it fairly easy.

Your not talking about the lift pump are you Chris?? The one thats on the injector pump with an arm attached to it?? If it is that usually has 2 wires coming out of the motor/solenoid and is powered thru a ballast resistor.

[Winnie]

Good news everyone! Replaced the fusible link today but still have no power on the glow rail when I should have... Put a cable from the battery to the rail and it started.
So the fault is definitely in the glow wiring somewhere. When I turn on the ignition I can hear and feel the relay click, then about 10 seconds later it clicks again, so would that mean that the timer is okay? Dash light works as it ever did, goes off in about 3 seconds.
I tested that I have power on both sides of the fusible link, and at the plug that is right next to the glow rail which doesn't have power, so it is being lost somewhere between the two.

Last time I put the cable from battery to glow rail I was by myself, this time I had another pair of hands and could hold the cable on while turning the engine over, maybe that's why it wouldn't start last time?


Any ideas where the issue could be now?

If you're happy and you know it tap a post!

[threedogs]

Ring the guy you brought it off he may know straight away whats up

[Yendor]

Do you now have power in the large White wire with a Red trace at the glow plug relay?

[Yendor]

I find it interesting that some of you are happy to talk s@it in the tech section, when someone can't get their vehicle running.

That's keeping it real..........

[Winnie]

Do you now have power in the large White wire with a Red trace at the glow plug relay?

No Rodney, just checked and no power there. I had to unplug that wire to be able to test it though does that matter?


If you're happy and you know it tap a post!

[Yendor]

No Rodney, just checked and no power there. I had to unplug that wire to be able to test it though does that matter?


If you're happy and you know it tap a post!

No unplugging it doesn't matter.

There should be another fusible link, it might be closer to the positive post of the battery.

Have you checked this one? Double check all fusible links

[the ferret]

Carn Guys, this's costing me a fortune in POPCORN!!!
Cheers, the ferret.

[Winnie]

No unplugging it doesn't matter.

There should be another fusible link, it might be closer to the positive post of the battery.

Have you checked this one? Double check all fusible links

That one is labelled "glow cont" and there is no power across it, the rest are fine, unplugged the link and checked for power on both terminals and nothing across either... The rest had power on one side when unplugged.


If you're happy and you know it tap a post!

[Yendor]

That one is labelled "glow cont" and there is no power across it, the rest are fine, unplugged the link and checked for power on both terminals and nothing across either... The rest had power on one side when unplugged.


If you're happy and you know it tap a post!

Where is this "glow cont" can you see what coloured wires go to it?

Same with the fusible link you replaced today what coloured wires go to this one.

We are looking for the White wire with a Red trace, can you see this wire at either fuse?

[NissanGQ4.2]

I find it interesting that some of you are happy to talk s@it in the tech section, when someone can't get their vehicle running.

That's keeping it real..........

Noted Rodney, my post have been removed

[taslucas]

I find it interesting that some of you are happy to talk s@it in the tech section, when someone can't get their vehicle running.

That's keeping it real..........

............wow

[Winnie]

The "glow cont" fuse is under the same cover as the big blue fusible link that is labelled "glow" that is bolted to the battery tray.
It's really hard to tell which wires go where but I can tell for sure that the white with red trace does not go to the blue fusible link that I replaced today, it looks like it is going to the brown 25A fusible link labelled "glow cont"

[Yendor]

Can I give you a call?

PM me your phone number

[Winnie]

Just spoke with Rodney and we think that the contacts inside the relay are shot... we have power going in but no power going out.

[threedogs]

Special relay or can you pop the cover off the one you have and give it a squirt or file like points ??
just for now ?

[Winnie]

Rodney suggested that but it is sealed so will have to be replaced.

[threedogs]

Bummer one of them ,can't whip one out of your other Patrol to try, like driving light one

[Bloodyaussie]

I really hope this is where the problem lies and you can sort it without the expence of an auto elect???

[Winnie]

Yeah me too, that would be good! Rodney is an absolute champion.

[Bloodyaussie]

Yeah me too, that would be good! Rodney is an absolute champion.

Yes I will agree... did not want to go down that path though as I know Rodney does not do it for the praise.....

Having a donor car has helped me out so many times with crap like this.... all the little things that have been the most useful.. eg relays, switches, air conditioning hose..... and so on!!!

[Ben-e-boy]

Yeah me too, that would be good! Rodney is an absolute champion.

What have you learned from this winnie??

[Winnie]

To not to touch things............

[Bloodyaussie]

To not to touch things............

Gold mate!!!!!!!!!!!!!!

[threedogs]

Think there's something in that for all of us . hey
Did someone say earlier if it aint broke, but no biggie
and you'll know your 4x4 a lot better as well , This whole process
is a learning curve even for those not up to speed on this subject.
power to you Winnie

[Clunk]

Think there's something in that for all of us . hey
Did someone say earlier if it aint broke, but no biggie
and you'll know your 4x4 a lot better as well , This whole process
is a learning curve even for those not up to speed on this subject.
power to you Winnie

Yes I did!!!!!@ lol but as you say more power to Pooh for havin a crack

MCcrappatappalot signing on..............

[Winnie]

Threedogs, it was broke in the first place, just misdiagnosed and me being silly made it a bigger problem.

If you're happy and you know it tap a post!

[Winnie]

Could not find a relay that I could get my hands on today so I have ordered one from Gary at Nizzbits.

If you're happy and you know it tap a post!

[threedogs]

Is one for your Driving lights the Wrong type??

[Winnie]

I just want to sincerely thank Yendor and the rest of you guys for helping me out here, it has saved me a trip to the auto electrician and the bill to go with it. The problem was the relay, the contacts inside were knackered. A $100 inc freight part from Nizzbits (delivered to my door in less than 24 hours mind you) and it is fixed and ready to go!

[Bloodyaussie]

I am so glad to hear mate..... Rodney is a champ hey!!!

He has no bloody sense of humor unless he is pissed and just come back from the footy!!

So you are ready for your trip then.

[Winnie]

Just gotta pack and away I go!

[Lonicus]

Good to hear mate!!

[Irvs]

Mate, talk to me about misdiagnosing faults after you rebuild your front end because you thought your CV was stuffed only to find your mate had left the hubs locked and your auto lokka was making that clicking noise............. -_-