The Isuzu Bighorn, also known as the Trooper in some markets, arrived in New Zealand shores in 1984, quickly gaining a loyal following for its practicality, reliability, and off-road capability. These early models represent a golden era of 4x4 engineering, but owners must be aware of age-related problems.
Common problems with these Bighorns/Troopers include rust (especially in the chassis and body panels), worn suspension components (ball joints, bushes, etc.), engine oil leaks, and issues with the four-wheel-drive system. Diesel injector issues are common, and the condition of the turbocharger (if equipped) should be checked.
WOF tips
Rust is a major WOF concern, so thoroughly check the chassis, sills, and wheel arches. Suspension wear is another common cause of failure. Ensure all lights work correctly, the brakes are effective and balanced, and the tyres meet legal requirements. Check for excessive exhaust smoke, particularly on diesel models.
About the Isuzu Bighorn D
The 1984-1989 Bighorn/Trooper offered a range of engine options, including petrol and diesel variants. It had a rugged four wheel drive system. Over time, the suspension and drivetrain can suffer from wear and tear, requiring regular inspection and maintenance.
Questions owners ask
What are the common rust spots I should check on my 1984-1989 Isuzu Bighorn/Trooper for a WOF in New Zealand?
For your Isuzu Bighorn/Trooper (1984-1989), WOF inspections in New Zealand will heavily scrutinise rust. Pay close attention to the chassis, sills, and wheel arches, as these are common problem areas for rust on these vehicles.
My 1984-1989 Isuzu Bighorn/Trooper diesel is blowing a lot of smoke. What could be causing this?
Excessive exhaust smoke, especially in diesel models of the 1984-1989 Isuzu Bighorn/Trooper, can indicate issues with the diesel injectors or the turbocharger (if equipped). These components should be inspected by a qualified mechanic.
Where can I get replacement suspension bushes for my 1984-1989 Isuzu Bighorn/Trooper in NZ?
CARFIX stocks 84 SKUs for the 1984-1989 Isuzu Bighorn/Trooper. You can find replacement suspension components like bushes and ball joints through CARFIX for your vehicle.
What are the typical maintenance issues I should look out for with a 1984-1989 Isuzu Bighorn/Trooper?
Common issues with the 1984-1989 Isuzu Bighorn/Trooper include rust in the chassis and body panels, worn suspension components (such as ball joints and bushes), engine oil leaks, and problems with the four-wheel-drive system. Diesel injector issues and turbocharger condition are also common concerns.
How often should I service my 1984-1989 Isuzu Bighorn/Trooper?
The recommended service interval for your Isuzu Bighorn/Trooper (1984-1989) is every 5000km.
Are there any DIY guides available for maintaining my 1984-1989 Isuzu Bighorn/Trooper?
Yes, CARFIX has 5 DIY videos available that can assist you with maintenance tasks on your 1984-1989 Isuzu Bighorn/Trooper.