Summary
The Volvo WX has 27 recalls covering the 1994–2002 production run, with multiple serious issues affecting steering, brakes, wheels, and drivetrain across nearly every model year; the most serious on later production is a 2002 rear suspension axle seat that can crack and shift the drive axle out of alignment, causing loss of directional control.
The 2001 model year carries two notable issues: a drive axle upper seat that can break and allow the axle to shift, and an electronic throttle accelerator clevis that can separate and cause the truck to drop to idle without warning. On 2000 models, a torque rod weld on Chalmers 800 series suspension can fail and cause the axle to lose retention, and certain Accuride 22.5x8.25 rims can develop cracks in the mounting ring weld and eventually separate from the vehicle.
The 1999 model year has the heaviest concentration of issues. Tie rod ball-socket bearings on TRW-equipped axle assemblies can wear prematurely and cause the driver to lose control of the right front wheel. Separately, the steering slip shaft connecting the column to the gear box can be too long, cracking the input shaft and eliminating steering without warning. A fuel tank cap can fail under impact and allow fuel to leak, raising the risk of fire. Automatic slack adjusters with insufficient fastener torque can gradually lose adjustment and extend stopping distances, and the front steer axle brakes on dual-steer configurations do not meet federal air brake release timing standards.
The 1998 model year has a body-builder wiring error that lets the transmission shift into forward gear without the driver pressing the brake pedal, risking unintended movement. The 1997 model year has a cluster of issues: a similar body-builder wiring problem, a steer axle wheel bearing jam nut that can back off the spindle and allow the wheel and brake drum to separate from the truck, aluminum dual wheels that can develop fatigue cracks and fail, a Haldex dash valve that can fail to isolate the two brake circuits and cause loss of service brakes, and an ABS control unit that can misinterpret wheel-end signals and temporarily lose braking at one or more wheel positions for several seconds.
The 1996 model year has a Cummins L10G engine control module that cannot detect a throttle fail-safe command, potentially causing the engine to run at wide-open throttle without the driver's input. On 1995 models, an air suspension axle retention plate can break under normal use and affect rear axle alignment, and incorrectly installed brake S-cams on the rearmost tandem axle can leave one or both wheels with inoperable brakes, lengthening stopping distances. Dual-steer 1995 models also have front steer axle brakes that do not meet federal release time standards, which can accelerate brake wear and lead to brake failure. The 1994 model year has a traction solenoid that can become obstructed with road contamination and hold the rear axle service brakes applied without the driver touching the pedal, and a front air suspension control valve supply line not routed through a pressure protection valve, which can drain the air reservoir for the front steer axle brakes and extend stopping distances.
