- Proven Mitsubishi-sourced powertrain: 1.5-litre engine and five-speed manual transmission
- Woeful occupant protection: one star ANCAP rating
- Limited payload and engine lacks torque for load carrying
- Suspension lacks compliance when unladen
- Engine requires premium unleaded petrol
Overview
Released in February 2003, the Proton Jumbuck was a front-wheel drive utility. Manufactured in Malaysia, the Jumbuck was powered by Mitsubishi’s 1.5-litre 4G15 four-cylinder petrol engine which had a single overhead camshaft, three valves per cylinder and a compression ratio of 9.2:1; five-speed manual transmission was fitted as standard. As per the table below, Jumbuck range consisted of entry-level GLi and better-equipped GLSi variants.
The Jumbuck had a ‘transverse torque box’ construction which combined the passenger car monocoque of the Proton CC Persona to a ladder-type rear frame. Aaccording to Proton, the transverse torque box resulted in a 50 per cent increase in torsional rigidity relative to the Persona.
The Jumbuck was 4455 mm long, 1690 mm wide, 1420 mm tall and had a 2600 mm long wheelbase, while ground clearance was 170 mm. Furthermore, the Jumbuck’s 1630 mm long tray was 415 mm deep and provided a load capacity of 0.817 cubic metres.
With its MacPherson strut front suspension and torsion beam rear axle with leaf springs, the Jumbuck had a payload of 550 kg and its tailgate was designed for loads of up to 300 kg.
| Variants | Engine | Trans. | Peak power | Peak torque |
|---|---|---|---|---|
| GLi, GLSi |
1.5-litre petrol I4 | 5sp man. | 64 kW at 6000 rpm | 120 Nm at 3000 rpm |
Safety equipment
The Jumbuck was not fitted with safety equipment such as airbags or ABS.
Brakes
The Jumbuck had 256 mm front brake discs and 229 mm rear drum brakes, while a load-sensing proportioning valve (LSPV) was fitted to provide uniform braking regardless of load.
ANCAP crash testing
In ANCAP crash testing , the Jumbuck received a one star adult occupant protection rating with a score of 8.39 out of 37. In the offset crash test, the passenger compartment was severely deformed; protection from head injury was poor for both front occupants and driver leg protection was also poor. In the side impact test, there was a high risk of life-threatening chest injury for the driver.
Features
Standard features for the Jumbuck GLi included a two speaker sound system with CD player, remote central locking, a tilt adjustable steering wheel, an alarm and immobiliser.
The Jumbuck GLSi was further equipped with 14-inch alloy wheels, a four speaker sound system, front fog lights, power windows and mirrors, a height adjustable driver’s seat and two-tone metallic paint.
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