The Isuzu Bighorn (also known as the Trooper) from 1986-1991 represented a generation of rugged, capable 4x4s that were a hit in New Zealand. Known for their robust construction and off-road prowess, these vehicles are still popular choices for those seeking adventure on a budget. However, age brings its own set of challenges.
Common issues include wear in the front suspension, particularly the ball joints and idler arm. Diesel models are prone to injector pump issues. Overheating can occur, so inspect the cooling system thoroughly. Rust is a significant concern, affecting the chassis, body panels, and floor pans.
WOF tips
Check for rust in the usual trouble spots, especially around the chassis rails, sills, and wheel arches. The condition of the suspension components is critical for WOF compliance. Ensure all lights are functioning correctly, including the high beams and fog lights (if equipped). Pay close attention to brake performance, as these vehicles can be heavy.
About the Isuzu Bighorn TD
These Bighorns/Troopers offered a choice of petrol and diesel engines, with the diesel being particularly popular for its fuel efficiency and torque. Four-wheel drive was standard, as well as a high-low transfer case. The live axle front suspension and sturdy chassis made this a competent off-roader. Interior comfort was basic but functional. Many units were used extensively for off-roading so expect wear and tear.
Questions owners ask
What are the common rust spots I should check on my 1986-1991 Isuzu Bighorn/Trooper for a WOF in New Zealand?
For your Isuzu Bighorn/Trooper (1986-1991) WOF, pay close attention to rust around the chassis rails, sills, and wheel arches. These are common trouble spots due to the vehicle's age and frequent off-road use.
My Isuzu Bighorn/Trooper (1986-1991) diesel engine seems to be having fuel issues. What's a common problem?
Diesel models of the 1986-1991 Isuzu Bighorn/Trooper are known to be prone to injector pump issues. If you're experiencing fuel-related problems, it's a good idea to have the injector pump inspected.
Where can I get replacement ball joints for my 1986-1991 Isuzu Bighorn/Trooper in NZ?
CARFIX stocks 38 SKUs for the 1986-1991 Isuzu Bighorn/Trooper. You can check our website or visit a CARFIX store in New Zealand to find replacement ball joints, as wear in the front suspension, particularly the ball joints and idler arm, is a common issue for these vehicles.
What should I look out for regarding the suspension on my 1986-1991 Isuzu Bighorn/Trooper?
The live axle front suspension and sturdy chassis of the 1986-1991 Isuzu Bighorn/Trooper made it a competent off-roader, but common issues include wear in the front suspension, particularly the ball joints and idler arm. The condition of these components is critical for WOF compliance.
My 1986-1991 Isuzu Bighorn/Trooper is overheating. What are the usual suspects?
Overheating can occur in the 1986-1991 Isuzu Bighorn/Trooper, so it's important to inspect the cooling system thoroughly. This includes checking the radiator, hoses, and thermostat for any issues.
Are there any DIY guides available for maintaining my 1986-1991 Isuzu Bighorn/Trooper?
Yes, CARFIX has 5 DIY videos available specifically for the 1986-1991 Isuzu Bighorn/Trooper to help you with common maintenance tasks.