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The Isuzu Trooper was a Mid-size SUV produced by the Japan ese automaker Isuzu between 1981 and 2002. It was exported worldwide as the '''Isuzu Bighorn''', Isuzu Trooper, ''' Honda Horizon''', ''' Acura SLX ''', ''' Chevrolet Trooper''', ''' Vauxhall / Opel Monterey''', and ''' Holden Jackaroo'''. It was a huge seller in the Sport Utility Vehicle segment. There were two generations of the Trooper produced – the first spanning 1981 through 1991, and the second from 1992 through 2002 when Isuzu ceased export of the model. It began its production run being somewhat primitive and underpowered, offered only with a 4 cylinder motor, standard 5 speed Manual Transmission , and part-time Four-wheel Drive system. As the first generation progressed, it became more luxurious, and offered more amenities, including a V6 Engine . The second generation was more refined, and was available with Two-wheel Drive . FIRST GENERATION Available as a 2 or 4 door, with a solid rear axle and the front featuring not released in the United States included the Isuzu 4JB1 and 4JB1-T engines, (2.8 L Diesel Inline Four-cylinder Engines , the "-T" indicating a Turbocharged version). In 1989 only, a short wheelbase (90") Isuzu Trooper was imported to the US market. All of these short wheelbase Troopers were equipped with 2.6L fuel injected 4cyl engines, 4.77:1 differential gears and 31"x10.5 tires mounted on 15"x7" aluminum alloy "snowflake" pattern wheels. Automatic and manual transmissions were offered. Further history of the first generation of Isuzu Trooper started in Central America <-- Years? -->, where smaller versions were made with removable roofs and a higher wheel clearance. Most favored the Isuzu 2.9 L turbo diesel. This medium-RPM, slightly modified engine was also used for portable freezer boxes, generators and lifeboats. It offered easy repair and stout use in the Trooper. Some are found on the roads and trails in the U.S. boasting better than 46 MPG. Isuzu ceased production of this particular model and its engine, and finding parts is difficult. It is admired by those who still own or have owned one for its simplicity, reliability and potential. SECOND GENERATION Isuzu's completely redesigned Trooper, introduced 1991 in Japan ,was bigger than the old ones at 4510 pounds and was in keeping with the trend of making SUVs larger, more powerful, and more luxurious. These vehicles used a 3.2 L single overhead cam ( SOHC ) model that put out 175 HP, with an available 3.2 L dual overhead cam ( DOHC ) engine rated at 190 hp. A SOHC 3.2 L engine producing 190 HP was introduced in 1996, replacing the prior engines. Most models, with the exclusion of the 1996 SE Limited, still used a part-time four-wheel drive system, which required stopping the vehicle to engage and disengage the front axle. The 1996 SE Limited model came with shift on the fly engagement. Models after 1996 included the same shift on the fly arrangement. From 1992, the SUB Series ("Holden Jackaroo", as it is known in Australia) was available with a pushrod Overhead Valve (OHV) 3.1 L intercooled turbodiesel (designated 4JG2) producing 84 Kw (203 HP) at 3600 RPM, and 260 Nm (212 lbs-ft) at 2000 RPM. It was offered as an alternative to the 3.2 L petrol, as a more rugged and fuel-efficient option for towing and heavy-duty operation. The diesel-powered Jackaroo was only available with a five-speed manual transmission and Aisin manually locking front hubs. The turbodiesel engine has established a reputation for excellent reliability and durability. The same engine was also available in the U.K. and other markets with a toothed rubber belt-driven OHC , which developed slightly more power. After 1998, and the introduction of the 4JX1 3.0 L diesel engine, a four-speed Automatic Transmission was made available. During this period, from 1994-1999, as the Honda Horizon, and in the United States from 1996-1999, as the Acura SLX . It has been rumoured that Honda assisted development in this generation of Troopers. Beginning in 1998, Troopers in the US were equipped with a DOHC 3.5 L engine producing 215 HP. Europe an and Asia n buyers could opt for a 4.0 L diesel, and other diesel engine options appeared later on, including the 4JG2 3.1 L (later superseded by the more problematic 4JX1 3.0 L). At this time, the introduction of the Borg-Warner Torque On Demand system provided an All Wheel Drive setting. Freshened styling also debuted at this time, and the grille was redesigned again for the 2000 model year. Of note, the Isuzu-designed 3.5L V6 engine available on later models of Isuzu trucks has been the target of some customer complaints due to an oil burning concern causing the engine to seize. Oil leaking past the piston rings during normal operation results in the engine "consuming" up to 2 quarts of oil during a typical 5000 mile change interval. {Link without Title} Reportedly this issue was fixed for the 2002 model year, and some 2001 model year vehicles were eligible for warranty extensions covering this specific defect. Transmission options included a five-speed manual transmission, and an electronically controlled four-speed automatic. The automatic had a "power" shift program wherein shift points were moved higher in the RPM band to take better advantage of the engine's power. It also had a "winter" mode, which allowed the transmission to start off in third gear for added stability in slippery conditions. This 4-speed automatic is called the 4L30E, and is manufactured by GM Powertrain in Strasbourg , France . 2000 to 2002 Troopers included a feature called "Grade Logic" which allowed the transmission to automatically downshift on steep grades in order to slow the vehicle down. The suspension consisted of a fully independent front suspension, and a multilink rear suspension to handle the solid rear axle. The Trooper LS and S models contained 117.8 cubic feet of cargo space, while Limited models contained only 112.3. In Europe and the UK, 7 seat and 3-door versions were offered, however US-spec Troopers came only in the 5-door, 5 seat models. Seating for 7 was also offered on the Opel/Vauxhall Monterey version. Optional on all models was a rear Limited Slip Differential . While skid plates protecting the fuel tank, transfer case and radiator, and, on four-wheel drive models, automatic locking front hubs, were standard features (until shift on the fly was introduced, at which point hub flanges were used). 1988 through 1991 Troopers with the 2.6l 4ZE1 engine and automatic transmission received manual locking hubs. In model year 2003, the Trooper was discontinued in the United States in favor of the smaller Axiom and the larger GM-produced Isuzu Ascender , a Re-badged GMC Envoy . Skyroof Edition The Isuzu Trooper was sold in the Philippines until model year 2005. Known as the Skyroof Edition with a rear wheel drive configuration, billet type radiator grille,and the largest power moonroof ever fitted in a Japanese SUV. It is available with the 4JX1-TC engine with 3.0 liters of displacement and 16valves that generates 160hp and 333nm of torque. Inside, it is fitted with standard leather seats, wood trim and a VCD entertainment system. The Isuzu Trooper is expected to be released again in 2009 in Europe. |
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