1999 Isuzu Trooper Duty DT SWB 3.0L Diesel · T999 RSH

Persistent oil leakage and recurring issues with the supplementary restraint system and drive shaft components define the mechanical profile of this Isuzu Trooper. The most recent test on 16 December 2025 resulted in a pass, but this follows a failure on 4 December 2025 involving a major defect regarding the SRS warning lamp, a split offside front CV boot, and excessive corrosion on the nearside rear brake pipe. A pattern of oil leaks, noted as not excessive in multiple tests dating back to 2021, remains a consistent advisory, alongside recurring issues with coil spring corrosion and drive shaft boot deterioration. The vehicle has covered 133,761 miles over its 27-year lifespan, which averages to approximately 4,954 miles per year. This relatively low annual mileage suggests the vehicle has not been subjected to high-frequency heavy usage, though the presence of sidewall cracking on tyres in 2023 and repeated advisories for perishing components may be consistent with a vehicle that spends significant periods stationary. While lower mileage often implies less wear on drivetrain components, the specific defects recorded, such as corroded brake pipes and perished rubber boots, are common in vehicles that undergo infrequent use or are exposed to environmental elements without regular mechanical movement. Prospective buyers should pay close attention to the documented history of oil leaks at both the front and rear of the vehicle. During a test drive, monitor for any change in engine note or visible pooling under the vehicle, and check for any excessive smoke from the exhaust which could indicate internal engine wear. The history of SRS warning lamp failures requires verification that the airbag system is fully operational; any illumination of the warning light on the dashboard during ignition or driving is a significant safety concern. Furthermore, the repeated advisories regarding corroded coil springs and brake pipes necessitate a thorough visual inspection of the underside to ensure that the structural integrity of the suspension and the security of the braking system are not compromised by ongoing oxidation. The drive shaft and CV boots have been a recurring point of failure and advisory, specifically regarding splits and deterioration. On the road, listen for rhythmic clicking or popping noises when turning the steering wheel at low speeds, which can indicate a failing CV joint resulting from a compromised boot. Additionally, given the history of brake pipe corrosion, the brake pedal should be tested for any unusual sponginess or a change in pressure, which could signal a leak or air ingress within the system. The condition of the tyres should also be physically inspected for sidewall cracking or perishing, as these have been flagged in previous inspections.