The 1998 Jeep Cherokee represents a significant moment in off-road vehicle history, housing an engine lineup that balanced capability with everyday usability. This model year specifically utilized the XJ platform, which provided a rigid frame and sophisticated independent front suspension for its time. Understanding the mechanical heart of this vehicle requires looking at the specific powerplants available to buyers. The engineering choices made for the 1998 model year reflect the automotive landscape of the late 1990s, where fuel efficiency and emissions compliance began to shape performance expectations.
Available Engine Options
For the 1998 model year, Jeep offered two primary engine choices for the Cherokee, catering to different needs and budgets. The standard option provided adequate power for daily driving and light trail use, while the premium option delivered the robust performance the brand is known for. This tiered approach allowed the Cherokee to compete effectively in a crowded market segment. Each engine was paired with a transmission designed to maximize its specific power band and torque curve.
4.0 Liter Inline-Six (AMC 242)
The 4.0-liter inline-six engine, often referred to as the AMC 242, remained the top-tier powertrain for the 1998 Cherokee. This legendary unit is celebrated for its durability, mechanical simplicity, and strong mid-range torque that is perfect for off-road crawling. Constructed with a cast iron block and head, it was engineered to endure harsh conditions and high mileage with minimal maintenance. Owners of this configuration often report that these engines can last well beyond 200,000 miles with proper care, making it a favorite among enthusiasts who view their vehicle as a long-term investment rather than a disposable commodity.
2.5 Liter Inline-Four (AMC 150)**
The base model 1998 Cherokee was equipped with the 2.5-liter four-cylinder engine, which was also shared with the Jeep Wrangler. While this powertrain was sufficient for highway cruising and basic commuting, it lacked the low-end grunt required for serious off-road adventures. This engine was primarily implemented to keep the vehicle affordable and compliant with increasingly strict fuel economy standards. Drivers opting for this configuration should understand its limitations regarding towing capacity and performance in rugged terrain, as it was never intended to be a workhorse in the traditional sense of the Cherokee name.
Performance and Capability
The 4.0-liter engine produced approximately 190 horsepower and 235 lb-ft of torque, figures that were competitive when the Cherokee was new. This power output allowed for a capable towing capacity, able to haul a small trailer or boat for recreational purposes. The transmission options included a five-speed manual or a four-speed automatic, with the automatic being the preferred choice for most buyers due to its convenience in stop-and-go traffic. The drivetrain, typically a part-time four-wheel-drive system, transferred power to the axles to provide traction in various conditions.
Reliability and Maintenance
One of the strongest selling points of the 1998 Jeep Cherokee is the reliability of its core mechanical components. The 4.0-liter engine is renowned for its robust valvetrain and lack of fragile plastic components that often fail on other modern engines. Routine maintenance is straightforward, although finding replacement parts for some components may require sourcing from aftermarket suppliers. Common issues to monitor include the distributor rotor and cap, as well as the condition of the front ball joints, which are part of the independent suspension setup.
