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Browsing: 4×4 Clinic

Question by: Keith Teubes Answer by: Arnold VenterWe bought our ‘09 Hummer H3 primarily for off-road and overland use. The vehicle has since done 30 000 km, of which 20 000 km has been off-road. We’re planning another trip (12 000 km) in the not too distant future, so with this in mind I set about ordering extra air, fuel and oil filters from the dealer. Much to my surprise I was informed that the Hummer doesn’t have an external/serviceable fuel filter, but rather a strainer within the fuel tank. Unconvinced that this could be the case, I contacted GM

Question by: Arnold Els Answer by: Arnold VenterI own a ‘08 Ford Ranger TDCI with a vibrating problem on the front RHS of the vehicle. I have had the tyres and shocks replaced, the alignment has been checked several times and I’ve even had the wheels high-speed balanced, but the problem persists. The vibrations are only noticeable from about 50 km/h, but it gets worst at 110 km/h and can also be felt at 150 km/h. I’m aware that this is fast, dangerous driving but I need to sketch the scenario here. Any advice would be greatly appreciated. Arnold Els

Question by: Rainer Scherzinger Answer by: Dennis MaytomI own a Land Cruiser 100 VX with air suspension. The ride of this vehicle is fantastic, the most comfortable of any 4×4 I’ve ever driven. The problem is that my Cruiser stands at a slight angle where the rear RHS is lower than the LHS – about 25 mm or so. I’ve tried swopping the rear coils from left to right but this hasn’t solved the problem. I could install a 10 mm OME spacer but that would still leave me 15 mm short. Do you have any suggestions as to how

Question by: Johan Palm Answer by: Dennis MaytomI own a Nissan Navara 4.0 and would like to upgrade the suspension. My personal experience with the OE suspension is that it’s too low for serious off-road work. I plan on overlanding with this bakkie to Namibia and Botswana but would like to have more confidence in the vehicle’s suspension system. I’ve chatted to various people about possible suspension upgrades and many folk speak highly of Old Man Emu, but will this system improve the Navara’s off-road ability while retaining on-road driveability? Johan Palm THE EXPERT’S OPINION: The Old Man Emu suspension

Question by: Arthur Manning Answer by: Arnold VenterI own an ‘00 Colt 2.8 TD. For some time now I’ve had a problem where the vehicle starts easily in the morning, but after running for a short while it splutters, spews out white smoke and then cuts outs. I then have to swing the engine for several seconds before it eventually fires to life again. I’ve tried bleeding the lift pump, but from what I can tell there’s no air in the system. I’ve also had the injectors checked and the lift pump replaced. This vehicle is regularly serviced so all

Qusetion by: Corné Opperman Answer by: Ronald HairbottleI drive an ‘84 Nissan Patrol SWB. It has a limited-slip diff at the rear and nothing up front. If I were to fit a diff-lock to this vehicle would it be advisable to put it at the rear, or should it be installed up front? If fitted to the front, will the locker affect my vehicle’s turning circle? Also, in terms of diff-locks, what options do I have for the Patrol? Corné Opperman THE EXPERT’S OPINION: The efficiency of your current limited-slip diff (LSD) will be marginal, now that the vehicle is

Question by: Versey Heydenrych Answer by: Arnold VenterI recently purchased an ‘09 Triton 3.2 DC. About two months ago I bought a 72-litre auxiliary tank from Front Runner, increasing the Triton’s fuel-carrying capacity to 147 litres. Unfortunately, the added fuel range has upset the vehicle’s onboard computer, which no longer accurately calculates the fuel consumption and estimated tank range. Is it possible to recalibrate this system for a 147-litre fuel tank? On a separate note: I replaced the Triton’s front bumper with an aftermarket winch bar and also fitted larger AT tyres (265 / 70 / 16). After performing these

Qusetion by: Michael Gill Answer by: Rob Eriksen-MillerI have a 3.5-litre Range Rover engine in a SWB lightweight Land Rover. For the last two years we’ve been trying to find out why it won’t start when hot. Pull it a car’s length and it starts and runs perfectly; the same if run downhill. Use the starter and it just spins over. Leave the bonnet open for 30 minutes and it fires up instantly. The main problem seems to be low voltage at the coil. We’ve tried lots of things over the last two years. What I’m looking for is something

Qusetion by: Riaan van Niekerk Answer by: Arnold VenterI own a ‘00 Hilux 2.7i but need more power to tow my stuff around. I had a Unichip installed and had the engine dyno’d a couple of times but still want a bit more oomph. I thought of importing an electric blower, but isn’t installing a bigger engine (Lexus etc.) a better option? I just need a bit more power for the passes – I have to go down to second gear regularly! I was thinking of buying a 4.0-litre but I’ve heard stories of hectic fuel consumption. Riaan van Niekerk

Question by: Manfred Mansfeld Answer by: Arnold VenterI’ve had problems with my Pajero 3.2 Di-D. At 800 metres above sea level I lose power and the vehicle doesn’t idle. It also consumes about 30 percent more diesel. My vehicle is still under maintenance contract and the local dealers are giving excellent service but are unable to find the fault. My off-road experiences with the Pajero can only be described as brilliant even though I’m not the best of off-road drivers. The gentleman on kykNET must have been driving in 4×2 and needs to be given lessons. I have owned at

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