Coolant Leak, where's this from

July 30, 2016, 7:02 pm

Hi fellow members.

I walked out this morning and saw a huge green puddle under my car, after removing the bash plate I was greeted with the below pictures.

A couple months back I had a mild leak that was coming from the water pump and was advised to go to holden and purchase a coolant kit which comprised of 3 tablets ( made out of walnut shells apparently) and crush them up and put it into the radiator. I was told it was going to be like sand blasting the internals and clean it up. My question how long do I leave it in there before flushing and was told that it could stay in till my next service which isn't quite due yet but now I found this.

Can anyone tell me or at best guess where this coolant is leaking from and what needs to be done and roughly how much I'm looking at for repair.

Will that bars stuff repair the leak temporarily till it goes for the service.

Any advice would be great..

Thanks peoples

Jack

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Rear End Noise

August 18, 2012, 2:18 am

≫ Next: Tech 2 Died - Now Fixed

≪ Previous: Coolant Leak, where's this from

Hi all. There is a distinct noise that is coming from the backend of my Jack. It happens mainly when I am turning left or when I'm off road. It is a loud metal on metal sound squeal which I thought initially was a wheel baring but it can't be or it would make it all the time. Anyone had this problem and do they know the fix. I know it's a hard one to describe on the computer but I've had the wheels off, checked the brakes etc and all seems to be fine. Any help would be much appreciated

Cheers

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Tech 2 Died - Now Fixed

July 17, 2016, 2:18 am

≫ Next: 4JX1 non start

≪ Previous: Rear End Noise

Hi all

While using my Tech2 on my Jackaroo, for a simple test, with the engine running, it turned off after about a minute. I checked the DC plug and turned it back on, which it did, then the screen gave a flicker, then died altogether.
No response to key presses and no lights at all.

I'm dissappointed with myself as I always use an external battery. It was just going to be a quick test. I got lazy and just plugged it in, relying on the power fed from the ECM plug.
Hindsight is a wonderful thing, and I'm a bit annoyed that this has happened. It's an expensive lesson which shouldn't have happened.

I can put this failure of the Tech2 down to just coincidence, or down to the likelyhood of my vehicle having a higher charging voltage than normal.
It has an aftermarket alternator and voltage sits around 14.5v with some pulsating.
I haven't had this car for too long and other more pressing matters with the usual 4JX1 ailments needed more priority. It was never a problem that I would have ignored.

It is quite possible that the first and only time I did not use an external battery to power the Tech2 allowed this slightly elevated voltage to damage the unit.
If this is true then the Tech2 is not guarded against this, so be warned!!

An interesting thing I picked up, and unfortunately too late, is that the fuses used in the Tech2 lead with the battery clamps, are rated at 40Amps, refer picture.

That is a gross mistake by the manufacturer considering the fuse holder clearly states 3Amps maximum. I'd taken this for granted.
So if you own a Tech 2, remove these 40A fuses and replace it with the correct value, if they are
available. If not available, modify the loom and use a different fuse holder that will accommodate a 3A fuse, whatever kind.

I opened the unit, and the only physical damage to the eye , was a small burned track which was now open circuit.
Repairing this track did not fix the unit. Without a circuit diagram, this will be a very time consuming repair, something I do not have or am willing to invest in for the moment.

For now, the only thing it is good for is for "Show and Tell", so here are some pictures.

Joan

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4JX1 non start

July 20, 2016, 3:51 pm

≫ Next: 4JX1 Messy Oil Changes + Template

≪ Previous: Tech 2 Died - Now Fixed

Has anyone had this issue with theyre 4JX1 engine ,,, starts fines when cold and will run and drive fine but if turned off and then try to restart it just cranks till batteries go flat, had it on a scan tool with live data and as far as i can tell everything/ sensors etc seem to be fine.Tried manually pumping fuel primer, it had an issue with the injector loom last time so that got changed(2nd hand loom and 4 injectors) there are no codes in ECU. Any ideas will be greatly appreciated

Thanks

p.s Thanks to anyone who has helped with any of my previous posts :-)

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4JX1 Messy Oil Changes + Template

May 16, 2016, 3:04 am

≫ Next: fron diff breather oil leak

≪ Previous: 4JX1 non start

For those doing their own oil changes, the 4JX1 gives you 2 great opportunities to make quite a mess.
Even if you leave the motor resting overnight, and allow the oil to drain to the sump, there is no escaping of oil dripping everywhere
when the oil filters are removed.

As the main filter is removed, oil spills over the front differential and along the filter, and unless cleaned up somehow, will leave
oil on the driveway or wherever it is parked.

The smaller filter too likes to dribble oil everywhere. there is not a lot you can do to avoid this. The filter is mounted upside down,
and gravity happily assists in spilling whatever oil is in the filter on removal.Unfortunately I have not thought of a solution for this one.

Here is a description of a gadget that somewhat will assist you in minimising this mess when changing the main oil filter.
Simply cut and shape a short piece of 90mm stormwater pipe to something that ressembles the attached picture.

The idea is to use your oil filter removal tool first to losen the filter. Do this until you can turn the filter by hand to a point just
before the seal breaks away and starts to spill oil. Squeeze the funnel (for a better word), past the torsion bar and over the filter
as far as it will go. Place a catch tray below the funnel. You can now losen the filter until the oil starts to run out. Wait a little bit until the oil flow is greatly reduced, then with a bit of a fiddling manouvre, keep turning the filter (funnel still in place) until you can remove the filter. Expect some more oil to flow as the filter is removed.
With a bit of practice, maybe only a few drops will be spilled, a vast improvement.
The gadget stayed in place (by friction) and can be left there unattended while oil is draining.

Hint. If you have access to a grinder with a steel brush, simply outline with a texta what you want removed from the PVC pipe, then just buff it into shape. Failing that, use a drill and rotary burring file.

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fron diff breather oil leak

August 11, 2016, 11:38 pm

≫ Next: V6 conversion

≪ Previous: 4JX1 Messy Oil Changes + Template

Hi there

I discovered the breather leaked oil all over the front left fender..

what causes this?

Thanks

Elad.

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V6 conversion

August 16, 2016, 3:53 pm

≫ Next: tech2

≪ Previous: fron diff breather oil leak

Yeah recall was in australia aswell! You can do away with the diesel and drop in the ecotec v6 commodore engine conversion is very simple and between $1500-$2000 depending on whats wrong with yours you could that much fixing it only to have it do it again.This was copied from another site but is this true and has anyone done this conversion? Seems to easy!!

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tech2

August 16, 2016, 8:48 pm

≫ Next: Patrol wheels on a Jackaroo?

≪ Previous: V6 conversion

guys im going to bite the bullet and buy tech2, im not a big ebay user so its daunting even with what I have read on this forum so I thought id ask here 1st does any body out there have a tech2 to read the 3ltr 4jx1 for sale thanks pretty much just want to properly adjust new tps

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Patrol wheels on a Jackaroo?

August 16, 2016, 2:45 pm

≫ Next: 2002 Jackaroo Diesel Turbo engine problem?

≪ Previous: tech2

anyone know if Patrol (gu) steel wheels with 31" tyres (stock gu patrol wheels) fir straight onto a jackaroo without a lift and without rubbing?

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2002 Jackaroo Diesel Turbo engine problem?

August 17, 2016, 4:17 pm

≫ Next: Leaking power steering

≪ Previous: Patrol wheels on a Jackaroo?

Looking at a cheap 2002. Engine on start up sways around like its loose and sounds rough, no diesel in coolant and exhaust is clean but rich, not really sooty though. It settles down in a minute and to drive it's like on 3 cyl and then cleans out. Has 260,000 km. Could it be stuffed turbo, blocked up mani fold from EGR, TPS. I'm handy with the tools and buy it or should I keep looking?

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Leaking power steering

August 18, 2016, 12:26 am

≫ Next: 2001 3.5 petrol O2 sensor second hand or new

≪ Previous: 2002 Jackaroo Diesel Turbo engine problem?

Hi guys,

The power steering box in my Jackaroo has developed a leak. It doesn't leak much, just enough to leave a deposit on the garage floor when parked overnight. Takes ages to make any significant difference to the level in the PS reservoir.

Went to a power steering place and they said that to fix it would require a complete rebuild or an exchange unit (or one from a wrecker). Cost $700~$1500 and maybe a month's wait. Another fix was to use 'power steering stop leak'. Never thought that I would hear a shop recommend 'stop leak' for anything. Was advised that it might take a while for the 'stop leak' to work, i.e. a few days to a few months.

Anyway have started to use the 'stop leak' but haven't noticed any reduction in the leaking. Has anyone else had success with these products? Did the shop guy BS me about needing a complete rebuild?

Cheers,
JackDriver

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2001 3.5 petrol O2 sensor second hand or new

August 22, 2016, 12:19 am

≫ Next: Rear wheel bearing failed again!

≪ Previous: Leaking power steering

Hi my jackaroo engine light keeps coming on and the last time the mechanic checked it had logged a previous issues with the O2 sensor. I he cleared the fault as it was no longer active but after a while it came back. I I notice the employer's are is running very rich stinks of un burnt fuel and blows black smoke I am going to have the mechanic check the fault again tomorrow. If it is the sensor is it worth buying a second hand one over a new one? If new where is the best place to source one?

Thanks Mike

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Rear wheel bearing failed again!

August 21, 2016, 6:19 pm

≫ Next: 2001 jack driveline shudder

≪ Previous: 2001 3.5 petrol O2 sensor second hand or new

Hi guys,

When servicing the Jack the other day I noticed that some oil had leaked out of the top of the rear diff. I have experienced this problem before and it's usually due to a blocked breather which causes the air pressure inside the diff to build up as the diff heats up. Since I'd just finished a 6000km caravanning trip to Lake Eyre I would image that the rear diff got hot a number of times.

Anyway, after procrastinating for a few days I decided to remove the diff centre and redo the seal and naturally make sure that the breather was nice and clear. In the process of removing the rear axles (which is necessary to remove the diff centre) I noticed that the LHS wheel bearing was sloppy and rough while the RHS bearing was OK. Now the wheel bearings on this model are sealed (do not run in diff oil) and I noticed that some of the grease had leaked out of the seal. This normally happens if diff oil manages to leak past the axle seal which can happen if the breather is blocked. Didn't see any signs of diff oil on the bearing though so I don't know if this was the cause this time.

What's p*****g me off is that this will be the third bearing I've had to replace on this side. The problem with these bearings is that they're not exactly cheap and they need a heavy duty press to get them off and I don't have the necessary tools in my workshop.

My question is, has anyone else had to replace the rear bearings in their Jack a number of times. BTW, the front wheel bearing in my MY2000 Jack are still original and the truck's just ticked over 350,000km.

Cheers,
JackDriver

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2001 jack driveline shudder

August 24, 2016, 1:33 am

≫ Next: Erratic dash voltmeter

≪ Previous: Rear wheel bearing failed again!

Hi guys

My jackaroo has an annoying driveline shudder while driving. It happens during cruising, at the moment when you apply or release throttle.

The mechanic has had a look and regreased the main drive shaft, but it hasn't resolved the issue. For info I replaced the factory viscous clutch with a heavy duty a couple of years ago, but I cannot recall if the shudder appeared after it went in.

I'm not sure whether this is a common problem for the jackaroos, so hopefully someone might be able to shed some light on this?

Thanks

Darius

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Erratic dash voltmeter

August 22, 2016, 10:31 pm

≫ Next: centrifuge spinner

≪ Previous: 2001 jack driveline shudder

Hi guys,

Another thing that's been bugging me for ages is that the voltmeter in my Jack randomly drops from ~13V to 11V, 10V or even 8V. It will stay there for a random length of time (from seconds to half an hour) and then suddenly jump back to ~13V. Obviously the battery voltage can't change this quickly and I've never had a flat battery so I assume that the alternator is OK. In fact, I've checked the battery voltage a number of times when the dash voltmeter displays 8V with the battery showing ~13.6V at engine idle.

Has anyone else had the problem? Do I need a new dash voltmeter?

Cheers,
JackDriver

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centrifuge spinner

August 24, 2016, 10:55 pm

≫ Next: 2000 3l td jackaroo injector problem

≪ Previous: Erratic dash voltmeter

had a spare 10 minutes so I decided to pull the spinner apart to have a look and see how much it had collected,

photo #1 shows how the carbon builds up and sticks like a molasses to the inside of the spinner.

photo #2 I wiped through the grime with one finger the photo doesn't show it very well, but it was about .25 mm thick.

photo #3 all clean up ready for reassemble

this oil has only done about 6000kl I normally change the oil after 12000 to 15000kI

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2000 3l td jackaroo injector problem

August 25, 2016, 4:41 am

≫ Next: Roof trim clips

≪ Previous: centrifuge spinner

So im redoing my injector and sleeve seals. Managed to get 3 sleeves out with a dynabolt setup but cant get the last one out. Is there anyone in perth with a sleeve puller that i could borrow. Any help wilould be greatly appreciated.

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Roof trim clips

August 27, 2016, 2:36 am

≫ Next: How do i remove the RPCV "rail pressure control valve"

≪ Previous: 2000 3l td jackaroo injector problem

I would be grateful if anyone can tell me a source, or even a part number, for the roof trim clip in the attached photo.

There are 8 either side and although the roof trim isn't exactly vital it's in good shape apart from half the clips being broken.

The vehicle is a 1999 model.

You know your 4JX1 is running well when you have time to worry about the body trim...!!!

Cheers

Rich

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How do i remove the RPCV "rail pressure control valve"

September 2, 2016, 8:22 am

≫ Next: Fuel temp error??

≪ Previous: Roof trim clips

How do i remove the RPCV "rail pressure control valve"

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Fuel temp error??

September 2, 2016, 12:54 am

≫ Next: What type of car radio for power aerial?

≪ Previous: How do i remove the RPCV "rail pressure control valve"

Ive just got the jack back from having a good 2nd hand engine fitted, it is running sweet, but I have a check engine light warning, Tech2 is telling me Fuel temp sensor circuit high input, I havent had a look as of yet as its getting too dark, but I assume this sensor is located on the fuel return at the back of the cylinder head? it may also be possible that they have forgotten to plug the harness back into it

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