Used car guide

1997 Isuzu Trooper diesel: common problems and MOT failures

What MOT testers find on the diesel Isuzu Trooper first registered in 1997 (diesel cars only): we looked at the 551 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

551MOTs of 1997 diesel cars, done in 2023–2025
63%pass first time (all 1997 cars: 65%)
6,000typical miles a year
2.1×the usual rate for rigid brake pipes

What goes wrong more than usual on a 1997 Isuzu Trooper diesel?

Parts flagged at MOT more often on the 1997 Isuzu Trooper diesel than on all cars registered in 1997.

  • Rigid brake pipes2.1× usual
    Isuzu Trooper
    31% All 1997 cars
    14.6%

    Failed outright at MOT: 4%, against 2.1% of all 1997 cars. The rest were advisories or minor defects.

    Rough price £100–£400 our estimate

    At the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.

  • Drive shaft (CV) joints4.2× usual
    Isuzu Trooper
    19.1% All 1997 cars
    4.5%

    Failed outright at MOT: 9.4%, against 1.9% of all 1997 cars. The rest were advisories or minor defects.

    Rough price £60–£350 our estimate

    At the viewing: Drive slowly on full steering lock in both directions and listen for clicking. Look for split rubber boots behind the front wheels.

  • Chassis rust or damage3.4× usual
    Isuzu Trooper
    19.8% All 1997 cars
    5.9%

    Failed outright at MOT: 5.3%, against 2% of all 1997 cars. The rest were advisories or minor defects.

    Rough price £150–£1,000 our estimate

    At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.

  • Wheel bearings2.8× usual
    Isuzu Trooper
    18.7% All 1997 cars
    6.8%

    Failed outright at MOT: 2.5%, against 1.2% of all 1997 cars. The rest were advisories or minor defects.

    Rough price £120–£300 (one bearing) ClickMechanic

    At the viewing: Listen for a hum or growl that changes as you steer at speed.

  • Ball joint dust cover3.1× usual
    Isuzu Trooper
    10% All 1997 cars
    3.2%

    Failed outright at MOT: 3.6%, against 1% of all 1997 cars. The rest were advisories or minor defects.

    Rough price £60–£150 (one joint) ClickMechanic

    At the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.

Better than most

Rust around suspension or steering mountings: 3.6% here, against 8.2% of all 1997 cars.

Common 1997 Isuzu Trooper diesel MOT failures and advisories

The share of 1997 Isuzu Trooper diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Brakes
    44% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Suspension
    42% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Lights and electrics
    34% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Rust and bodywork
    29% of testsRough price £150–£1,000

    At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.

  • Oil and fluid leaks
    19% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

  • Tyres
    19% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

Questions to ask the seller before buying a 1997 Isuzu Trooper diesel

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. Any recent work on the rigid brake pipes? (Flagged at MOT 2.1× as often on the 1997 Isuzu Trooper diesel as on other cars the same age.)
  2. Any recent work on the drive shaft (cv) joints? (Flagged at MOT 4.2× as often on the 1997 Isuzu Trooper diesel as on other cars the same age.)
  3. Any recent work on the chassis rust or damage? (Flagged at MOT 3.4× as often on the 1997 Isuzu Trooper diesel as on other cars the same age.)
  4. Can I see the service history and receipts for any big jobs?

Looking at an Isuzu Trooper?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the Isuzu Trooper compared

YearMOT testsMost flagged
2006117Brakes 50%
2005457Brakes 49%
2004679Brakes 46%
2003730Brakes 42%
2002917Brakes 44%
2001563Brakes 43%
2000573Brakes 47%
1999637Brakes 48%
1998656Brakes 43%
1996266Brakes 49%
1995163Brakes 46%
1994153Brakes 42%
1993152Suspension 36%
1992–Too few tests
1991–Too few tests
1990–Too few tests
1989–Too few tests
1988–Too few tests
1987–Too few tests

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Isuzu Trooper cars first registered in 1997. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score