I have owned trooopers for at least 18 Years and slowly but surely worked up until purchasing the LWB Auto Insignia.
The petrol motor was excellent but costly. changed for the 3.0L DT LBW Auto.Turbo Diesel. Worst thing I have ever done.

This vehicle is a total let down, a disappointment, an insult to the normal qualities produced by Japanese manufacturers, problems have been non-stop. It ' s a 2001 I got it approx 2 half yrs ago, in first year it was in garage no less than 6 times with engine light well and truly lit. Each repair was a minimum of £300.00 ranging right up to £650.00, its had recalls on it since then and it has just gone down with engine failure again. Its unstable on the motorway with wind. Structurally it ' s great, power is great, interior is comfy for a commercial total shame about the rest, Isuzu r no-go for me now!

I put a diesel treatment into the tank just before the Irish DOE for commercials. Bad idea. I hadn't been smokey beforehand but two days later its like inspector gadget has been at it!
No garage really wants to look at it and the Isuzu main dealers say it will cost €1400 for injectors alone before labour. Not much use for a jeep that cost €7250 after 3 months ownership. Avoid like the plague.

It is not advisable to buy an Isuzu Trooper 3.0 TDi DOHC. We owned one for about one month and a "Check Engine" light was a common visitor along with the speedo not working. After bringing it to be checked we were advised to sell it as soon as possible. There is a design fault with the 3L Diesel engine. Stay clear! If you want to buy a Trooper, only buy a 3.1L Diesel 1997 downwards, preferably with a recent timing belt, as replacement's cost €600+.

The Isuzu Trooper was a great vehicle until the design faults apparent in the 2998 cc TDi DOHC engine kicked in after 70000 miles

Isuzu Trooper - My 1 year old (10,000 mile) trooper blew up at 70mph on the motorway sending smoke and debris out of the back bringing the motorway to a grinding halt. This was due to an injector seal failure on my 3.0 diesel engine. Diesel got into the engine oil causing it to rev and rev until it blew up.
This is not considered to be a safety issue by the importer and so is not under recall by them. Beware if you have the 3.0 diesel engine, I advise you sell yours before it's too late.
The resale value of these is on the floor though because the problem must now be getting common knowledge.
If you don't sell it, do what I do, join the AA, take a coat and a mobile phone out with you.

I bought a second hand Isuzu Trooper 99 3.0 turbo deisel 4x4 and loved it, had it dealer serviced to maintain the warranty. after 18 months with 56K on the clock I noticed some smoke coming from the exhaust the isuzu dealer told me the engine needed replacing, it had overheated. when I said it must be replaced under warranty the dealer said the warranty was void because the previous owner had missed a service. The previous owner had serviced the car but the dealer did not stamp the book. Isuzu said to repair the engine would be £8000 but they would give me a 50% discount. £4000 was still too much so I had the engine replaced by an independant engine builder costing £3000. Kept the car for another 12 months then got rid as the turbo had blown, clutch wasn't right and I had lost confidence in the vehicle after several other problems. The local dealer admitted to me that isuzu was having 40 to 50 percent engine failures with this latest common rail unit. At the time of the engine failure I was very ill so did not take legal action against isuzu which if I had been well I might have done. I now drive toyota and would not have another isuzu beccause of their customer service or lack of it.