3.0 Trooper 99 starting problems

farrellniall

HELLO LADS THIS IS MY FIRST THREAD.

I BOUGHT A 3.0L 99 TROOPER TODAY.

IT HAS SMALL BODY DAMAGE. I AM NOT WORIED ABOUT THAT I CAN FIX IT IN A COUPLE OF DAYS. (PANEL BEATER).

IT WOUNT START. IT WILL TURN OVER BUT WONT FIRE. NEW BATTERY AND I EVEN CHARGED THE NEW ONE. IT HAS BEEN LYING UP FOR OVER 2 YEARS.

I NEED HELP SOON PLEASE I AM IN A BAD WAY.

DIDNT THINK IT WOULD TAKE A LOT TO GET IT GOING.

NEED HELP SOON THANKS. NIALL
:(:(:(:(

Slidey

Welcome to boards Niall. Just a wee hint, typing in CAPS is frowned upon, it is considered shouting on the internet.

I hope you have not bought a turkey.

The most common thing to cause a non start in these is a rail oil pressure switch faulty. The early ones had the ECU fused through the brake light fuse, you may as well check that too.


After that it may have a crack in the oil pick up pipe in the sump. Bad oil pressure pumps, high pressure pump, faulty injectors, cam shaft/crank sensor....

The best thing you can do is get it hooked up to diagnostics and see what the live data is showing. Most of the time there won't even be a fault code so you need more than a code reader.

farrellniall

thanks very much do you know how i would cheak that rail oil pressure swich.

Slidey

You need to be able to read the rail oil pressure as you are cranking the engine. The only way this can be done really is to have it on diagnostics of some kind.

Someone on here before said you could disconnect one of the wires going into the engine loom and it would start without the rail oil pressure switch but I worked in an Isuzu garage for 11 years now and never heard of that.

The switch is dear enough and it is a complete waste of time getting a 2nd hand one. Think its about €90

farrellniall

thanks. were is the best place to get it looked at arould dundalk. would this brake (perish) with it been lying up a long time. could i change it my self i have some nohow in macanics but i am a panel beater by trade.

Slidey

It shouldn't cause it.

They are a fickle enough yoke to work with. I'm not sure many independent garages would know much about them. A main dealer should have some parts on the shelf to help with the fault finding.

Slidey

Oh ya, another thing, the have to have the right oil, 5w30.

The engine oil pumps can give trouble in these. Does it build oil pressure on the dash when cranking

sincere113

Make sure the oil is up to the max. mark and filled with the correct oil. I think its fully synthetic 5W 40 in those. Its thin oil even when cold. If you suspect that its the wrong oil do a swap. The oil pressure has to build before it will fire.

Here is a link to an excellent website forum with all kinds of help for troopers. I've used it to fault find on the 4 wheel drive system. I can't recommend it enough.;)

http://www.itocuk.co.uk/forums/

farrellniall

thnaks slidcey. i am nt to shore if i does i dont think so. is this a problem??

farrellniall

cinsere i will have a look.

Slidey

farrellniall wrote: »

thnaks slidcey. i am nt to shore if i does i dont think so. is this a problem??

Sometimes they crack the oil pick up pipes in the sump. I have also seen them fall off!

If this happens you cannot build oil pressure which these need to start.

There can also be an issue with the engine oil pumps which are high up in the engine at the back of the flywheel. When they get worn they can't prime themselves if the oil has totally drained out of them. This can be solved by over filling the engine with a litre or 2 of oil and jacking them up at the front til the back of the jeep hits the ground. It ain't pretty but it works

sincere113

Slidey wrote: »

Sometimes they crack the oil pick up pipes in the sump. I have also seen them fall off!

If this happens you cannot build oil pressure which these need to start.

There can also be an issue with the engine oil pumps which are high up in the engine at the back of the flywheel. When they get worn they can't prime themselves if the oil has totally drained out of them. This can be solved by over filling the engine with a litre or 2 of oil and jacking them up at the front til the back of the jeep hits the ground. It ain't pretty but it works

+1

But if over filling fixes the problem, fix the pickup and take the extra oil out afterwards.

MrFoxman360

Slidey wrote: »

Someone on here before said you could disconnect one of the wires going into the engine loom and it would start without the rail oil pressure switch but I worked in an Isuzu garage for 11 years now and never heard of that.

Yea my brother did this a few years ago after a friends one failed to start at a very bad time (outside the pub on last christmas eve in the freezing cold:rolleyes:)

I think it was the solid white colour wire on the engine loom, he snipped it in a place easy to repair afterwards and it started instantly.

Not an ideal thing to do though, as it could be masking the problem of actual poor oil pressure I suppose, instead of a faulty sensor, it does work though!

sincere113

MrFoxman360 wrote: »

Yea my brother did this a few years ago after a friends one failed to start at a very bad time (outside the pub on last christmas eve in the freezing cold:rolleyes:)

I think it was the solid white colour wire on the engine loom, he snipped it in a place easy to repair afterwards and it started instantly.

Not an ideal thing to do though, as it could be masking the problem of actual poor oil pressure I suppose, instead of a faulty sensor, it does work though!

Its true, to the left edge of the engine there is a loom in a black sheath. Pull that back and there is a white wire. Cutting it isolates the oil pressure switch.

farrellniall

ok thanks. then does this elimate the compter. becouse i found out today that i would need to take it down to dublin. it will cost me €50 to get it pluged in then €150 to get it towed up. then do the work. which the sensor cost €135. my local isuzu garage dont have the computer to do it. (its broke.) can any one else help me here.

sincere113

farrellniall wrote: »

ok thanks. then does this elimate the compter. becouse i found out today that i would need to take it down to dublin. it will cost me €50 to get it pluged in then €150 to get it towed up. then do the work. which the sensor cost €135. my local isuzu garage dont have the computer to do it. (its broke.) can any one else help me here.

If there is enough oil in it then look for the white wire, cut it and then try to start. If she goes then its a faulty sensor. If she doesn't go then connect the wire back and your back to where you started but eliminated the oil pressure sensor.

Another thought......Is the battery turning over the engine fairly lively. I saw one that had a failing battery that wouldn't start. The battery had enough power to turn it over but not with great power. They should 'wang' over fairly lively before they'll start and for a good few seconds until oil pressure is up (back to good oil pressure).

farrellniall

thats grate thanks. yes the battery dosent seem to lively. but it is a brand new battery that cost €100. but i also put on a very large battery charger. and it did seem to live up the engine a bit. but still didint start.

farrellniall

i looked at the fule system yesterday and my fillter was cloged up. so put a new one on. then i blew the fuel lines out. so i tried to start it but noting. would i have a imobiliser problem???

beretta686s

check if the clutch was done a lot of cowboys got caught over the years doing clutches in these the fly wheel is timed and if now put back in the right place it wont start just turn and turn and turn but wont every fire:eek:

selfdiy

You need to find someone with a tech II that has the isuzu card, they then need to plug this in and interpret the live data correctly.

Extremely difficult to fix this engine without that device.

farrellniall

right lads i have goten some where today i hope. i have fuel i have oil pressure and then i tought it for a tow. it did start but i wouldent stay running. soon as i stoped towing it it would cut out. and it wouldent take the boot. (fuel). can any one please please help. thanks.

farrellniall

well lads thanks very much for all your help. i sold the jeep today to a nice man in donegal. and i didnt loose my money, thank good.

hope to talk soon.

sincere113

Did you get her going? If so what was the problem?

farrellniall

no i didnt. tyred my best thought. i am looking out for a jeep thats going now. do you no of any going. if so pm me.

kipkasper09

Having a problem taking out the starter on my 98 trooper any tips would be great can't get in to get the wires off the solenoid have the starter off but can't get it up cause still can't get it out cause of wires