Patrol pre-trip inspection: what to check before a big trip

Nissan Patrol · verified fitment

Why inspect before the trip instead of fixing things on the road?

Because most trip-ending problems give warnings before they become dramatic. A weeping hose, loose bearing, cracked bush, tired battery or rubbing wire is much easier to deal with in the shed than on a wet track or beside a highway with the family waiting.

Patrols are tough, but they are not magic. GQ and GU models are old enough that age-related wear matters. Y62 models are modern and powerful, but still dislike heat, overload and poor accessory work. A pre-trip inspection is not about fear. It is about starting the trip with a vehicle you actually know.

Do the inspection early enough that you can order parts, test repairs and drive the Patrol before leaving. The night before departure is for packing, not discovering a leaking hub.

What should you check under the bonnet?

Start with the cooling system. Look for stains, crust, soft hoses, swollen hoses, loose clamps, damaged fan shrouds, blocked airflow and signs of previous overheating. Cooling health matters on every Patrol, but especially on loaded touring vehicles, towing rigs and engines with a sensitive reputation.

Check belts, pulleys, filters, oil leaks, fuel leaks and anything that looks recently disturbed. A fresh leak after service work should not be ignored because it is new. Make sure the battery is secure, the terminals are clean, and accessory wiring is fused and protected. Loose batteries and rough wiring cause real problems on corrugations.

On diesel Patrols, pay attention to air filtration and intake sealing. Dust is brutal. On petrol Patrols, look for smooth running, clean ignition behaviour and no warning signs. On a Y62, scan for warning lights and make sure modern electrical accessories have been integrated properly.

How do you inspect tyres and wheels?

Tyres carry the trip. Check tread condition, sidewalls, valve stems, age, puncture repairs and uneven wear. Look for cuts, bulges, cracking and scalloping. A tyre that looks acceptable around town may not be the one you trust on loaded gravel or remote tracks.

Check all wheels, including the spare. Make sure the spare matches the plan for the trip and is accessible when the vehicle is loaded. A spare buried behind camping gear is a nuisance. A spare with low pressure or a damaged valve is worse.

Confirm your tyre repair kit, compressor and pressure gauge are present and working. Do not discover a dead compressor after airing down. If you run different tyre pressures for road, gravel, sand or rock, know your process before the trip rather than guessing under pressure.

What suspension and steering checks matter most?

Look for leaking shocks, sagging springs, cracked bushes, loose mounts, shiny movement marks, damaged steering boots and clunks. Grab and shake what you can safely check. If the Patrol has started wandering, pulling, vibrating or knocking, investigate before departure.

GU Patrol owners should be especially alert to front-end looseness. Panhard bushes, radius arm bushes, wheel bearings, swivel hubs and steering joints all affect stability. A small shimmy at home can become a serious wobble when the truck is loaded and the road is rough.

For any Patrol, ask whether the suspension suits the actual load. Touring drawers, water, tools, recovery gear, roof loads and passengers change how the vehicle behaves. A setup that feels fine empty can be unsettled when packed.

What about brakes and driveline?

Brakes need more than a quick pedal press. Inspect pad condition where visible, listen for scraping, feel for pulsing, check fluid leaks and make sure the handbrake behaves normally. A loaded Patrol on a long descent needs brakes you trust.

For the driveline, listen for new clunks, vibrations, whining, harsh engagement or fluid leaks. Check tailshaft joints, diff areas, transfer case area and gearbox area for obvious issues. Engage four-wheel-drive modes where it is safe and appropriate before the trip. If something sticks, flashes, bangs or refuses to engage at home, do not hope it fixes itself on the track.

Wheel bearings deserve attention, especially before long gravel runs or water crossings. Any play, noise or heat should be investigated.

What gear should be tested, not just packed?

Recovery gear, lights, radios, fridge, solar, winch, compressor and chargers should all be tested. A winch that has not been unspooled in years is an ornament until proven otherwise. A radio with a dead microphone is not communication. A fridge that only works when the plug sits at a certain angle is telling you something.

Pack heavy gear low and secure. Nothing in the cargo area should become a projectile. Keep recovery gear reachable, first aid accessible and tools organised. If you need to empty half the truck to get the jack, the packing system needs work.

What should you do after the first day?

Recheck the Patrol. Look underneath, feel for loose gear, inspect tyres, listen for new noises and check fluids where appropriate. The first rough day often reveals what the driveway did not. Catching a loose bracket or rubbing cable early can save the rest of the trip.

A good pre-trip inspection is not glamorous, but it is one of the best upgrades you can give a Patrol.

Where Patrolmania fits in

Patrolmania can help turn your inspection into action with maintenance parts, filters, steering and suspension components, recovery essentials and touring gear that suits Patrols used for real trips, not just car park photos.