Ford Ranger Diesel Problems

This could be caused by something inside the engine bay rattling or vibrating, but could also be linked to the exhaust system or its heat-shielding doing the same thing. When you hit the accelerator up a hill, the engine and driveline (and exhaust) are suddenly put under a lot of stress which can be passed along any mechanical link or fixture, making things flex or vibrate that don’t normally do so when they aren’t subjected to the same stresses and loads.

When the engine is cold, have a feel around the engine bay to find anything loose or poorly mounted that could contribute to such vibrations. It could be as simple as a poorly located clamp of a loose piece of trunking or internal panelling vibrating against another part. Often these noises will be conveyed into the cabin via the fresh air vents, making them sound even louder.

Just be sure not to confuse a rattle with the normal cacophony of noises a modern turbo-diesel produces as part of operating under load.

This is one of those questions where there are no hard and fast answers. The lifespan of pretty much any automotive engine will be determined far more by the way it’s been used and maintained than any rule of thumb being tossed around the industry.

Vehicles that do mainly highway kilometres tend to last longer since the engine is under less stress than one idling in traffic and then accelerating from every traffic light. The same goes for vehicles that have never had a tow-bar fitted versus one that has hauled a three-tonne trailer every day of its life.

Servicing plays a huge part, too, and a well maintained engine will always outlast one that has had skipped oil changes and other preventative maintenance. Overall, diesels used to live longer than their petrol equivalents, but the extent to which modern turbo-diesels are tuned to deliver power and torque means that’s not always the case these days.

Over the years, we’ve seen these Ranger engines fail at mileages as low as 100,000km, while others make it to 300,000 or even 400,000km while still in good health. Common engine problems to watch out for with this model Ranger engines include failed EGR coolers, contaminated and even blocked inlet tracts, worn turbochargers, DPF problems and failures, leaking and faulty fuel injectors and coolant leaks.

For a few years from 2005, Nissan sold two types of Navaras in Australia - the all-new big D40 series and the old D22 that dated back from the latter 1990s. 

If you want an inexpensive, compact and hard-wearing truck that's reliable but not very refined nor comfortable, the old D22 is it. Its 3.0L turbo-diesel has proven strong and reliable in this application and the Nissan has a reputation for being as tough as nails.

The larger and newer D40, meanwhile, is the much better choice if space, safety and refinement are priorities, and remained a class-leading proposition right up until the current-generation Ford Ranger, Mazda BT-50 and Volkswagen Amarok all moved the pick-up truck game on in 2011. The Spanish-built ST-X is the choice grade, especially in turbo-diesel and 4x4 guise.

The Navara is considered a reliable and dependable truck, but many are also workhorses that lead tough lives and are often neglected or mistreated. If you're after one, please consider having it checked out first by an experienced mechanic.

Known issues include fuel-injection failure, roof rust, premature clutch wear in manual  models, electronics issues, turbo-charger failures and sagging rear springs.

Such problems can apply to any similar truck, so don't be too put off by the D40 Navara. It's a firm used-truck favourite for good reason.

Every all-new MY21 Isuzu D-Max and select current versions of the Amarok and Ranger offer a 3500kg towing capacity maximum - namely all Amarok V6 autos and all Rangers EXCEPT the 4x2 XL Single Cab Chassis Low-Rider 2.2 Diesel at the bottom of the Ford range, and the 4x4 Raptor Double Cab Pick-Up 2.0L Diesel at the very top (they're both 2500kg).

Least torquey is the D-Max at 450Nm, followed by the Ranger (2.2L 4-cyl: 385Nm, 3.2L 5-cyl: 470Nm and 2.0L twin-turbo 4-cyl: 500Nm) and Amarok (550Nm to 580Nm), meaning the Amarok will probably be the least challenged towing a 2.8-tonne caravan. But all three should suffice.

Please note, however, that Gross Combined Mass (GCM) tallies means that there are other weight factors that need to be considered before safely towing a 2.8-tonne caravan, even with a 3500kg ute. These include things like the ute's payload, heavy bull bars, sports bars and side steps, canopies and even the number of people travelling inside. And of course, a fully-equipped and laden caravan can easily exceed the stated tare mass.

We hope this helps.   

Like any modern diesel vehicle, T6 Rangers need to be taken on regular long drives of a few hundred kms to clean out the DPF filter. The DPF tends to clog up with soot in metro driving or on short trips, but can be blown clear by loading up the Ranger and taking it miles out of town for a good long trip. There have been a raft of problems with Rangers recently brought to light, including engines needing replacement, leaking engine oil from the rear main seal, split intercooler pipes, and even harsh transmission shifts. These aren't unique problems, however, as the Toyota HiLux, Nissan Navara, Mitsubishi Triton and others have all had reported problems of their own. The solution is to buy a Ranger with a comprehensive service history, with low mileage and get it professionally inspected before spending your hard earned. It should last years then.

The easiest and cheapest way to improve the mileage from your Ford Ranger is to concentrate on driving with peak efficiency in mind. Avoiding stop/start traffic, maintaining a constant cruising speed on the freeway, and driving as smoothly as possible will all pay dividends to your fuel consumption. Diesel models also benefit from an improved intercooler, intake and exhaust package in conjunction with a retune of the factory ECU.

The Amarok is rated to tow 3000 kg, which would make it marginal for your needs given that you want to tow around three tonnes. The Ranger and BT-50 are rated at 3500 kg, which would make them more suitable for you. The Ranger and the BT-50 are the same vehicle, it's only the features that separate them. For me, of those you list the Mazda is the best value-for-money.

From your description it does appear to be noisy injectors. Take it back to the dealership and have them assess the noise in your presence so you can make sure they are hearing what you hear. Once you've done that make a warranty claim to have it fixed.

It's OK but the Ford Ranger and Mazda BT-50 are better. The Mazda gets The Tick based on lower prices for better value.

It's too early for a reliability read on classy utes such as the Ford Ranger/Mazda BT50 and VW Amarok, which with their lusty turbo diesels are great for heavy work.