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Gary, Australia Car Mechanic
Category: Australia Car
Satisfied Customers: 878
Experience:  Senior Technician
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I have a 2003 RA Rodeo Diesel with 300,000 ks on it. The car

Customer Question

Hi, I have a 2003 RA Rodeo Diesel with 300,000 ks on it.
JA: What is the make/model of your car?
Customer: The car is as above, it will start but stops after about 10 seconds, fuel is good and has pressure right up to the hand primer. I suspect it is a fuel cut off solenoid, but not sure, any ideas, thank you.
JA: Has the vehicle turned into a gas hog? And how does it start -- same as usual?
Customer: fuel is consistent, 10ks to the liter, it will start as usual but cuts out quickly, we did get it to drive about 3ks but it went back to only running a few secs, thank you.
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: We'll fix it if we can find out what to fix, it is not showing any fault codes and the bloke from RACV seems to confirm the problem is the fuel cut off but I'm not sure if that is serviceable/replaceable or if it may require an injector pump overhaul.
JA: Anything else you want the mechanic to know before I connect you?
Customer: Yes, what is the deal with this communication please.
Submitted: 3 months ago.
Category: Australia Car
Customer: replied 3 months ago.
ok so I have paid you the money through pay pal and ended up at this page, are you able to help now please
Expert:  Gary replied 3 months ago.

Hi there,

I have replaced the suction control valve on the back of the high pressure pump for this concern.

There is a revised SCV available from Holden.

Can you check for any codes set please?

Is your engine a 4JJ1 or 4JH1?


Customer: replied 3 months ago.
It's not showing any codes
And it's not common rail which I think the SCV refers to?
Expert:  Gary replied 3 months ago.

Ok, yours is a 4JH1.

The fuel inlet banjo bolt is a fine porous filter.

The line where it goes onto the HIGH pressure pump.

Can you remove the banjo bolt and see how blocked it is?

It can be backflushed to clean it.


Customer: replied 3 months ago.
Ok, we can look at that but if that was blocked/restricted, I suspect it wouldn't rev out when it decides to actually do so?
Expert:  Gary replied 3 months ago.

With no codes, it will be difficult.

But many don't know about this prefilter.

Yours could have a harness fault.


Customer: replied 3 months ago.
Thanks, ***** ***** be the muffler bearing too, any more suggestions?
Expert:  Gary replied 3 months ago.

I've had one with a blocked cat convertor, straight off the turbo.

But that doesn't sound like your type of problem.

I would fit a fuel pressure gauge to monitor the low pressure pump.

The intank pumps are common for failure.


Customer: replied 3 months ago.
It seems to be maintaining fuel pressure to the injector pump.
If you look at the injector pump here in pic 3 there is an electrical connection to a "box" at the top of the pump.
Is this the fuel cut off and is it replaceable/serviceable by it self or would be only available as a complete injector pump unit?
Expert:  Gary replied 3 months ago.

That's a good question.

I've never replaced one, but a mates Dad has.

I would contact the company you have mentioned to see if it can be replaced separately.


Customer: replied 3 months ago.
Have contacted them, will let you know what they say.
Expert:  Gary replied 3 months ago.


Can you see the banjo bolt filter in the photo?

The inlet fitting with the cardboard tube around it.

Have a good day.


Customer: replied 3 months ago.
I can see the filter in the banjo fitting but have not removed mine yet.As far as the cut off valve is concerned the response from the company was,"Thank you for your inquiry regarding our reco’d Isuzu Truck 200 4JH1 Diesel Fuel Injection Pump.
In response to your query, unfortunately we do not sell the fuel cut off valve as a separate product.
Complete fuel pump would need to be purchased."I will talk to tomorrow and go from there.
Expert:  Gary replied 3 months ago.

It is starting to sound a little difficult now, because of what they say as well.

I would try the banjo filter, and a few other things like the solenoids on the RH guard for dirt blockage etc.


Expert:  Gary replied 3 months ago.

Hi again,

Have you removed the banjo filter to check for blockage as yet?

Or do you want to replace the pump assembly now?

I hope my advice has been of assistance to you.

Kind regards


Customer: replied 3 months ago.
I am still waiting the results from the diesel specialists who have had the vehicle since Monday.When I know the results I will let you know.
Expert:  Gary replied 3 months ago.

Ok, I hope they will find your problem for not much cost.


Customer: replied 2 months ago.
Gary, the care is fixed and it was not fuel related in the end.
Expert:  Gary replied 2 months ago.

Hi again,

Was there any codes?

Was it related to the immobilizer module?

Glad you have fixed your issue.

Kind regards